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• 1. [Image] 1999 Klamath River fall chinook age composition

  	Title taken from subject line ; "February 9, 2000."
  	Citation × Citation Citation Abstract Copy Title: 1999 Klamath River fall chinook age composition Year: 2000, 2005 Title taken from subject line ; "February 9, 2000." Title: 1999 Klamath River fall chinook age composition Year: 2000, 2005 Title taken from subject line ; "February 9, 2000." Close

• 2. [Image] 1998 Klamath River fall chinook age composition

  	"To: Klamath River Technical Advisory Team." "February 4, 1999."
  	Citation × Citation Citation Abstract Copy Title: 1998 Klamath River fall chinook age composition Year: 1999, 2005 "To: Klamath River Technical Advisory Team." "February 4, 1999." Title: 1998 Klamath River fall chinook age composition Year: 1999, 2005 "To: Klamath River Technical Advisory Team." "February 4, 1999." Close

• 3. [Image] Age composition of the 1995 Klamath River fall Chinook run

  	The age composition of the in-river run of Klamath River fall chinook is an integral part of the database used to manage this salmon stock. Age composition is used in conjunction with annual estimates ...
  	Citation × Citation Citation Abstract Copy Title: Age composition of the 1995 Klamath River fall Chinook run Year: 1996, 2005 The age composition of the in-river run of Klamath River fall chinook is an integral part of the database used to manage this salmon stock. Age composition is used in conjunction with annual estimates of in-river harvest and escapement to estimate the ocean stock size of Klamath River fall chinook for fishery managment purposes. A total of 13,994 scale samples were examined to estimate the age composition of fall chinook in the Klamath River in 1995. The scales were collected from 13 locations and were aged using scales from coded wire tag recoveries as references. Age composition estimates from each sampling location were weighted by the magnitude of that location's contribution to the inriver run. Because some locations were inadequately sampled, surrogate samples were used represent to them. Angler harvest and in-river run size for 1995 were estimated by applying the age composition to the California Department of Fish and Game's population 'megatable". Seven versions of these estimates are given, using different combinations of surrogate samples. Title: Age composition of the 1995 Klamath River fall Chinook run Year: 1996, 2005 The age composition of the in-river run of Klamath River fall chinook is an integral part of the database used to manage this salmon stock. Age composition is used in conjunction with annual estimates of in-river harvest and escapement to estimate the ocean stock size of Klamath River fall chinook for fishery managment purposes. A total of 13,994 scale samples were examined to estimate the age composition of fall chinook in the Klamath River in 1995. The scales were collected from 13 locations and were aged using scales from coded wire tag recoveries as references. Age composition estimates from each sampling location were weighted by the magnitude of that location's contribution to the inriver run. Because some locations were inadequately sampled, surrogate samples were used represent to them. Angler harvest and in-river run size for 1995 were estimated by applying the age composition to the California Department of Fish and Game's population 'megatable". Seven versions of these estimates are given, using different combinations of surrogate samples. Close

• 4. [Image] Ecology of kokanee salmon and rainbow trout in Crater Lake, a deep ultraoligotrophic caldera lake (Oregon)

  	ill.; Thesis (M.S.)-Oregon State University, 1988; Includes bibliographical references (leaves 74-80)
  	Citation × Citation Citation Abstract Copy Title: Ecology of kokanee salmon and rainbow trout in Crater Lake, a deep ultraoligotrophic caldera lake (Oregon) Author: Buktenica, M. W., (Mark W.) Year: 1988, 2009 ill.; Thesis (M.S.)-Oregon State University, 1988; Includes bibliographical references (leaves 74-80) Title: Ecology of kokanee salmon and rainbow trout in Crater Lake, a deep ultraoligotrophic caldera lake (Oregon) Author: Buktenica, M. W., (Mark W.) Year: 1988, 2009 ill.; Thesis (M.S.)-Oregon State University, 1988; Includes bibliographical references (leaves 74-80) Close

• 5. [Image] Attempt at Paleomagnetic Dating of Opal, Roosevelt Hot Springs KGRA

  	The results of paleomagnetic investigation of a drill core from the Opal Dome at Roosevelt Hot Springs are reported. A log of the core from 1.5 to 16.8 m is given. (MHR)
  	Citation × Citation Citation Abstract Copy Title: Attempt at Paleomagnetic Dating of Opal, Roosevelt Hot Springs KGRA Author: Brown, F.H. Year: 1977 The results of paleomagnetic investigation of a drill core from the Opal Dome at Roosevelt Hot Springs are reported. A log of the core from 1.5 to 16.8 m is given. (MHR) Title: Attempt at Paleomagnetic Dating of Opal, Roosevelt Hot Springs KGRA Author: Brown, F.H. Year: 1977 The results of paleomagnetic investigation of a drill core from the Opal Dome at Roosevelt Hot Springs are reported. A log of the core from 1.5 to 16.8 m is given. (MHR) Close

• 6. [Image] The vegetation dynamics of pinus contorta forest, Crater Lake National Park, Oregon

  	ill., maps, bound; Thesis (M.S.)-Oregon State University, 1978; Includes bibliographical referenes (leaves 151-162)
  	Citation × Citation Citation Abstract Copy Title: The vegetation dynamics of pinus contorta forest, Crater Lake National Park, Oregon Author: Zeigler, Robert S. Year: 1978, 2009 ill., maps, bound; Thesis (M.S.)-Oregon State University, 1978; Includes bibliographical referenes (leaves 151-162) Title: The vegetation dynamics of pinus contorta forest, Crater Lake National Park, Oregon Author: Zeigler, Robert S. Year: 1978, 2009 ill., maps, bound; Thesis (M.S.)-Oregon State University, 1978; Includes bibliographical referenes (leaves 151-162) Close

• 7. [Image] Annual survey of abundance and distribution of age 0 shortnose and Lost River suckers in Upper Klamath Lake

  	One chapter of a seven chapter annual report from 1999 examining ecological issues regarding the shortnose and Lost River sucker populations in Upper Klamath Lake and Williamson River.
  	Citation × Citation Citation Abstract Copy Title: Annual survey of abundance and distribution of age 0 shortnose and Lost River suckers in Upper Klamath Lake Author: Oregon Cooperative Wildlife Research Unit Year: 2000, 2005 One chapter of a seven chapter annual report from 1999 examining ecological issues regarding the shortnose and Lost River sucker populations in Upper Klamath Lake and Williamson River. Title: Annual survey of abundance and distribution of age 0 shortnose and Lost River suckers in Upper Klamath Lake Author: Oregon Cooperative Wildlife Research Unit Year: 2000, 2005 One chapter of a seven chapter annual report from 1999 examining ecological issues regarding the shortnose and Lost River sucker populations in Upper Klamath Lake and Williamson River. Close

• 8. [Image] Feeding of golden-mantled ground squirrels by park visitors at Crater Lake National Park

  	map; "A research paper submitted to the Department of Geography in partial fulfillment of the requirements for the Degree of Master of Science."; "May 1984."; Includes bibliographical references (leaf ...
  	Citation × Citation Citation Abstract Copy Title: Feeding of golden-mantled ground squirrels by park visitors at Crater Lake National Park Author: Schwarzkopf, S. Kent Year: 1984, 2010 map; "A research paper submitted to the Department of Geography in partial fulfillment of the requirements for the Degree of Master of Science."; "May 1984."; Includes bibliographical references (leaf 50-52). Title: Feeding of golden-mantled ground squirrels by park visitors at Crater Lake National Park Author: Schwarzkopf, S. Kent Year: 1984, 2010 map; "A research paper submitted to the Department of Geography in partial fulfillment of the requirements for the Degree of Master of Science."; "May 1984."; Includes bibliographical references (leaf 50-52). Close

• 9. [Image] Fishes and stream habitat in tributaries of the Klamath River in Crater Lake National Park, with special reference to the Sun Creek Bull Trout (Salvelinus confluentus) population

  	"December 1993."; "NPS D-155."; Other agencies: Oregon Department of Fish and Wildlife; National Biological Survey, Cooperative Park Studies Unit, College of Forestry, Oregon State University; Includes ...
  	Citation × Citation Citation Abstract Copy Title: Fishes and stream habitat in tributaries of the Klamath River in Crater Lake National Park, with special reference to the Sun Creek Bull Trout (Salvelinus confluentus) population Author: Dambacher, Jeffrey M; Buktenica, Mark W; Larson, Gary L Year: 1993, 2007, 2005 "December 1993."; "NPS D-155."; Other agencies: Oregon Department of Fish and Wildlife; National Biological Survey, Cooperative Park Studies Unit, College of Forestry, Oregon State University; Includes bibliographical references (p. 44) Title: Fishes and stream habitat in tributaries of the Klamath River in Crater Lake National Park, with special reference to the Sun Creek Bull Trout (Salvelinus confluentus) population Author: Dambacher, Jeffrey M; Buktenica, Mark W; Larson, Gary L Year: 1993, 2007, 2005 "December 1993."; "NPS D-155."; Other agencies: Oregon Department of Fish and Wildlife; National Biological Survey, Cooperative Park Studies Unit, College of Forestry, Oregon State University; Includes bibliographical references (p. 44) Close

• 10. [Image] Geology of the Cove Fort-Sulphurdale KGRA

  	The Cove Fort-Sulphurdale Known Geothermal Resource Area (KGRA) is located on the northwestern margin of the Marysvale volcanic field in southwestern Utah. The geology of the KGRA is dominated by lava ...
  	Citation × Citation Citation Abstract Copy Title: Geology of the Cove Fort-Sulphurdale KGRA Author: Moore, J.N. Year: 1979 The Cove Fort-Sulphurdale Known Geothermal Resource Area (KGRA) is located on the northwestern margin of the Marysvale volcanic field in southwestern Utah. The geology of the KGRA is dominated by lava flows and ash-flow tuffs of late Oligocene to mid-Miocene age that were deposited on faulted sedimentary rocks of Paleozoic to Mesozoic age. The geothermal system of the Cove Fort-Sulphurdale KGRA is structurally controlled by normal faults. High-angle faults control fluid flow within the geothermal reservoir, while the gravitational glide blocks provide an impermeable cap for the geothermal system in the central part of the field. Surficial activity occurring to the north and south of the glide blocks is characterized by the evolution of hydrogen sulfide and deposition of native sulphur. Intense acid alteration of the aluvium, resulting from downward migration of sulphuric acid, has left porous siliceous residues that retain many of the original sedimentary structures. Detailed logs of Union Oil Company drill holes Forminco No. 1, Utah State 42-7, and Utah State 31-33 are included Title: Geology of the Cove Fort-Sulphurdale KGRA Author: Moore, J.N. Year: 1979 The Cove Fort-Sulphurdale Known Geothermal Resource Area (KGRA) is located on the northwestern margin of the Marysvale volcanic field in southwestern Utah. The geology of the KGRA is dominated by lava flows and ash-flow tuffs of late Oligocene to mid-Miocene age that were deposited on faulted sedimentary rocks of Paleozoic to Mesozoic age. The geothermal system of the Cove Fort-Sulphurdale KGRA is structurally controlled by normal faults. High-angle faults control fluid flow within the geothermal reservoir, while the gravitational glide blocks provide an impermeable cap for the geothermal system in the central part of the field. Surficial activity occurring to the north and south of the glide blocks is characterized by the evolution of hydrogen sulfide and deposition of native sulphur. Intense acid alteration of the aluvium, resulting from downward migration of sulphuric acid, has left porous siliceous residues that retain many of the original sedimentary structures. Detailed logs of Union Oil Company drill holes Forminco No. 1, Utah State 42-7, and Utah State 31-33 are included Close

• 11. [Image] Biomass of coniferous and understory trees in Crater Lake National Park, Oregon

  	ill. ; Report title; "CPSU/UW82-1."; "James K. Agee: Research Biologist and Associate Professor." - T.p.; "A simplified procedure using tree height to predict biomass is presented for management application." ...
  	Citation × Citation Citation Abstract Copy Title: Biomass of coniferous and understory trees in Crater Lake National Park, Oregon Author: Agee, James K. Year: 1981, 2008, 2009 ill. ; Report title; "CPSU/UW82-1."; "James K. Agee: Research Biologist and Associate Professor." - T.p.; "A simplified procedure using tree height to predict biomass is presented for management application." - Preface.; Includes bibliographical references p. 15. Title: Biomass of coniferous and understory trees in Crater Lake National Park, Oregon Author: Agee, James K. Year: 1981, 2008, 2009 ill. ; Report title; "CPSU/UW82-1."; "James K. Agee: Research Biologist and Associate Professor." - T.p.; "A simplified procedure using tree height to predict biomass is presented for management application." - Preface.; Includes bibliographical references p. 15. Close

• 12. [Image] Research on the Physical Properties of Geothermal Reservoir Rock. Quarterly Report.

  	Laboratory measurements of thermal conductivity and capillary pressure have been undertaken for samples of Cenozoic Volcanic rocks collected from the Columbia Plateau Volcanic basin. These measurements ...
  	Citation × Citation Citation Abstract Copy Title: Research on the Physical Properties of Geothermal Reservoir Rock. Quarterly Report. Author: Skokan, C.K. Year: 1978 Laboratory measurements of thermal conductivity and capillary pressure have been undertaken for samples of Cenozoic Volcanic rocks collected from the Columbia Plateau Volcanic basin. These measurements were performed at atmospheric pressure and room temperature. Various methods of measuring thermal conductivity were investigated and finally a flash method was chosen. The equipment was constructed and tested. The results were favorable. Numerous capillary pressure curves were obtained by use of the mercury injection technique. These curves indicate pore structure: pore size, pore distribution, pore volume, and pore geometry. Measurements of this type help to explain variations in rock properties such as seismic velocities and resistivities Title: Research on the Physical Properties of Geothermal Reservoir Rock. Quarterly Report. Author: Skokan, C.K. Year: 1978 Laboratory measurements of thermal conductivity and capillary pressure have been undertaken for samples of Cenozoic Volcanic rocks collected from the Columbia Plateau Volcanic basin. These measurements were performed at atmospheric pressure and room temperature. Various methods of measuring thermal conductivity were investigated and finally a flash method was chosen. The equipment was constructed and tested. The results were favorable. Numerous capillary pressure curves were obtained by use of the mercury injection technique. These curves indicate pore structure: pore size, pore distribution, pore volume, and pore geometry. Measurements of this type help to explain variations in rock properties such as seismic velocities and resistivities Close

• 13. [Image] Issue Alert: Catching Up and Keeping Up

  	The Bonneville Power Administration has invested $3 billion in its Northwest power grid. The grid provides three-quarters of the region's high-voltage power transmission. It must be well maintained to ...
  	Citation × Citation Citation Abstract Copy Title: Issue Alert: Catching Up and Keeping Up Author: Bonneville Power Administration Year: 1989 The Bonneville Power Administration has invested $3 billion in its Northwest power grid. The grid provides three-quarters of the region's high-voltage power transmission. It must be well maintained to assure reliable electric service to the region. In recent years, BPA has postponed some maintenance to help keep its costs and rates down. This deferral concerns us. And it concerns our customers - the utilities who buy power from BPA Title: Issue Alert: Catching Up and Keeping Up Author: Bonneville Power Administration Year: 1989 The Bonneville Power Administration has invested $3 billion in its Northwest power grid. The grid provides three-quarters of the region's high-voltage power transmission. It must be well maintained to assure reliable electric service to the region. In recent years, BPA has postponed some maintenance to help keep its costs and rates down. This deferral concerns us. And it concerns our customers - the utilities who buy power from BPA Close

• 14. [Image] Site Insolation and Wind Power Characteristics: Technical Report Western Region (North Section)

  	This study phase was performed to provide historic statistical information on solar and wind power availability in the Western Region (North Section) of the United States. A total of 21 NOAA SOLMET stations ...
  	Citation × Citation Citation Abstract Copy Title: Site Insolation and Wind Power Characteristics: Technical Report Western Region (North Section) Author: Bray, Roger E. Year: 1980 This study phase was performed to provide historic statistical information on solar and wind power availability in the Western Region (North Section) of the United States. A total of 21 NOAA SOLMET stations were selected to represent this region Title: Site Insolation and Wind Power Characteristics: Technical Report Western Region (North Section) Author: Bray, Roger E. Year: 1980 This study phase was performed to provide historic statistical information on solar and wind power availability in the Western Region (North Section) of the United States. A total of 21 NOAA SOLMET stations were selected to represent this region Close

• 15. [Image] Site Insolation and Wind Power Characteristics: Technical Report Western Region (South Section)

  	This study phase was performed to provide historic statistical information on solar and wind power availability in the Western Region (South Section) of the United States. A total of 22 NOAA SOLMET stations ...
  	Citation × Citation Citation Abstract Copy Title: Site Insolation and Wind Power Characteristics: Technical Report Western Region (South Section) Author: Bray, Roger E. Year: 1980 This study phase was performed to provide historic statistical information on solar and wind power availability in the Western Region (South Section) of the United States. A total of 22 NOAA SOLMET stations were selected to represent this region Title: Site Insolation and Wind Power Characteristics: Technical Report Western Region (South Section) Author: Bray, Roger E. Year: 1980 This study phase was performed to provide historic statistical information on solar and wind power availability in the Western Region (South Section) of the United States. A total of 22 NOAA SOLMET stations were selected to represent this region Close

• 16. [Image] Life zones with special reference to the botanical features of those of Crater Lake National Park

  	Thesis, M.A., Oregon, Dept. of Biology; Bibliography: p. 70-71
  	Citation × Citation Citation Abstract Copy Title: Life zones with special reference to the botanical features of those of Crater Lake National Park Author: Wynd, Frederick Lyle Year: 1930, 2009 Thesis, M.A., Oregon, Dept. of Biology; Bibliography: p. 70-71 Title: Life zones with special reference to the botanical features of those of Crater Lake National Park Author: Wynd, Frederick Lyle Year: 1930, 2009 Thesis, M.A., Oregon, Dept. of Biology; Bibliography: p. 70-71 Close

• 17. [Image] Preliminary report on the ground-water resources of the Klamath River Basin, Oregon

  	The Klamath River basin, including the adjacent Lost River basin, includes about ?,5>OO square miles of plateaus, mountain-slopes and valley plains in south-central Oregon* The valley plains range in altitude ...
  	Citation × Citation Citation Abstract Copy Title: Preliminary report on the ground-water resources of the Klamath River Basin, Oregon Author: Newcomb, Reuben Clair Year: 1958, 2005 The Klamath River basin, including the adjacent Lost River basin, includes about ?,5>OO square miles of plateaus, mountain-slopes and valley plains in south-central Oregon* The valley plains range in altitude from about U,100 feet in the south to more than li,500 feet at the northern end; the mountain and plateau lands rise to an average altitude of 6,000 feet at the drainage divide, some peaks rising above 9*000 feet. The western quarter of the ba3in is on the eastern slope of the Cascade Range and the remainder consists of plateaus, mountains, and valleys of the basin-and-range type* The rocks of the Klamath River basin range in age from Recent to Mesozoic* At the southwest side of the basin in Oregon, pre~Tertiary metamorphic, igneous, and sedimentary rocks, which form extensive areas farther west, are overlain by sedimentary rocks of Eocene age and volcanic rocks of Eocene and Oligocene age* These early Tertiary rocks dip east toward the central part of the Klamath River basin. The complex "volcanic rocks of high Cascades" include three units: The lowest unit consists of a sequence of basaltic lava flows about 800 feet thick5 the medial unit is composed of volcanic-sedimentary and sedimentary rocks?the Tonna formation-200 to 2,000 feet thick; the uppermost unit is a sequence of basaltic lava flows commonly about 200 feet thick. These rocks dip east from the Cascade Unpublished records subject to revision 2 Range and are the main bedrock formations beneath most of the basin. Extensive pumice deposits, which emanated ^?^ ancestral Mount Mazaraa, cover large areas in the northwestern part of the basin* The basin has an overall synclinal structure open to the south at the California boundary where it continues as the Klamath Lake basin in California* The older rocks dip into the basin in monoclinal fashion from the adjoining drainage basins* The rocks are broken along rudely rectangular nets of closely spaced normal faults* the most prominent set of which trends northwest* The network of fault displacements includes two main grabens, the Klamath and the Langell, which were downthrown approximately ?00 and 1,000 fast, respectively* The average annual precipitation varies with the altitude, the higher parts of the Cascade Range getting more than 60 inches, and the semierid valley plains receive as little as 13 inches in some places* Most precipitation occurs in the winter. \ The principal tributaries, Williamson and Sprague Rivers, rise near the higher parts of the eastern rim of the basin, flow through narrow valley plains to the western part, and discharge into Upper Klamath Lake* Wood River and associated creeks also empty into Upper Klamath Lake after draining southward along the eastern foot of the Cascade Range* The Klamath River receives the outflow from Upper Klamath Lake, via Lifak River and Lake Ewauna, and flows southwestward through Keno Gap and hence through a youthful canyon, to its lower valley in California* The ground water occurs largely in an unconfined, or water-table, condition, though areas of local confinement are present* The regional Unpublished records subject to revis&oa is graded to water table / a base level about equal to that of the major drainage* where water is confined, on the valley plains. The slope of the water tafele, ~ of/the piezomstric surface is downstream at about the same grade as that "of the surface drainage in each of the larger valleys, attd groufid*water divides occur between the upper parts of adjacent major valleys* The principal water-bearipg units are.the'lower lava rocks and upper lava rocks of the "volcanic rocks of high Cascades,* the pumice of Quaternaryage, and the allusriTuju In places layers of coarse flagmental material in the Tonna formation (Newcorub, 1958) also transmit water* The water-bearing units, especially the breccia layers of the lava rocks and the pumice, yield large amounts of water to wells and provide natural discharge outlets for the ground water. The spring outflows to the Williamson and Wood Rivers-Crooked Creek drainage, measured in September and October 1955, were at a rate equivalent to about 700,000 acre-feet per year. The spring outflows into the Sprague River were at a rate equal to 2l;5>000 apre-feet per year* Large springs occur along the edges of Upper Klamath Lake but their discharges could not be measured, and the known spring discharge from the lower lava rocks in the river canyon below Keno was not measured. The spring discharge into Lost River in the reach ?rom Bonanza to Harpold Bridge was at a rate equivalent to 75,000 acre-feet per year. Much of the water discharged from springs is used for irrigation during the growing season, but ground water has not been extensively Unpublished records subject to revision developed by means of wells except in the'Yonna Valley and other local areas. The total withdrawal of ground water from wells in 1951? was only about 30,000 acre-feet, of which 27,000 was used for irrigation* The ground water is of excellent quality in general, but sodium sulfate water occurs in the belts of warm rock along some faults and alkali bicarbonate water is present in the main evapotranspiration basins. Unpublished records subject to revision Title: Preliminary report on the ground-water resources of the Klamath River Basin, Oregon Author: Newcomb, Reuben Clair Year: 1958, 2005 The Klamath River basin, including the adjacent Lost River basin, includes about ?,5>OO square miles of plateaus, mountain-slopes and valley plains in south-central Oregon* The valley plains range in altitude from about U,100 feet in the south to more than li,500 feet at the northern end; the mountain and plateau lands rise to an average altitude of 6,000 feet at the drainage divide, some peaks rising above 9*000 feet. The western quarter of the ba3in is on the eastern slope of the Cascade Range and the remainder consists of plateaus, mountains, and valleys of the basin-and-range type* The rocks of the Klamath River basin range in age from Recent to Mesozoic* At the southwest side of the basin in Oregon, pre~Tertiary metamorphic, igneous, and sedimentary rocks, which form extensive areas farther west, are overlain by sedimentary rocks of Eocene age and volcanic rocks of Eocene and Oligocene age* These early Tertiary rocks dip east toward the central part of the Klamath River basin. The complex "volcanic rocks of high Cascades" include three units: The lowest unit consists of a sequence of basaltic lava flows about 800 feet thick5 the medial unit is composed of volcanic-sedimentary and sedimentary rocks?the Tonna formation-200 to 2,000 feet thick; the uppermost unit is a sequence of basaltic lava flows commonly about 200 feet thick. These rocks dip east from the Cascade Unpublished records subject to revision 2 Range and are the main bedrock formations beneath most of the basin. Extensive pumice deposits, which emanated ^?^ ancestral Mount Mazaraa, cover large areas in the northwestern part of the basin* The basin has an overall synclinal structure open to the south at the California boundary where it continues as the Klamath Lake basin in California* The older rocks dip into the basin in monoclinal fashion from the adjoining drainage basins* The rocks are broken along rudely rectangular nets of closely spaced normal faults* the most prominent set of which trends northwest* The network of fault displacements includes two main grabens, the Klamath and the Langell, which were downthrown approximately ?00 and 1,000 fast, respectively* The average annual precipitation varies with the altitude, the higher parts of the Cascade Range getting more than 60 inches, and the semierid valley plains receive as little as 13 inches in some places* Most precipitation occurs in the winter. \ The principal tributaries, Williamson and Sprague Rivers, rise near the higher parts of the eastern rim of the basin, flow through narrow valley plains to the western part, and discharge into Upper Klamath Lake* Wood River and associated creeks also empty into Upper Klamath Lake after draining southward along the eastern foot of the Cascade Range* The Klamath River receives the outflow from Upper Klamath Lake, via Lifak River and Lake Ewauna, and flows southwestward through Keno Gap and hence through a youthful canyon, to its lower valley in California* The ground water occurs largely in an unconfined, or water-table, condition, though areas of local confinement are present* The regional Unpublished records subject to revis&oa is graded to water table / a base level about equal to that of the major drainage* where water is confined, on the valley plains. The slope of the water tafele, ~ of/the piezomstric surface is downstream at about the same grade as that "of the surface drainage in each of the larger valleys, attd groufid*water divides occur between the upper parts of adjacent major valleys* The principal water-bearipg units are.the'lower lava rocks and upper lava rocks of the "volcanic rocks of high Cascades,* the pumice of Quaternaryage, and the allusriTuju In places layers of coarse flagmental material in the Tonna formation (Newcorub, 1958) also transmit water* The water-bearing units, especially the breccia layers of the lava rocks and the pumice, yield large amounts of water to wells and provide natural discharge outlets for the ground water. The spring outflows to the Williamson and Wood Rivers-Crooked Creek drainage, measured in September and October 1955, were at a rate equivalent to about 700,000 acre-feet per year. The spring outflows into the Sprague River were at a rate equal to 2l;5>000 apre-feet per year* Large springs occur along the edges of Upper Klamath Lake but their discharges could not be measured, and the known spring discharge from the lower lava rocks in the river canyon below Keno was not measured. The spring discharge into Lost River in the reach ?rom Bonanza to Harpold Bridge was at a rate equivalent to 75,000 acre-feet per year. Much of the water discharged from springs is used for irrigation during the growing season, but ground water has not been extensively Unpublished records subject to revision developed by means of wells except in the'Yonna Valley and other local areas. The total withdrawal of ground water from wells in 1951? was only about 30,000 acre-feet, of which 27,000 was used for irrigation* The ground water is of excellent quality in general, but sodium sulfate water occurs in the belts of warm rock along some faults and alkali bicarbonate water is present in the main evapotranspiration basins. Unpublished records subject to revision Close

• 18. [Image] Initial effects of prescribed fire in a climax Pinus contorta forest: Crater Lake National Park

  	ill., 1 map; "CPSU/UW81-4."
  	Citation × Citation Citation Abstract Copy Title: Initial effects of prescribed fire in a climax Pinus contorta forest: Crater Lake National Park Author: Agee, James K. Year: 1981, 2010 ill., 1 map; "CPSU/UW81-4." Title: Initial effects of prescribed fire in a climax Pinus contorta forest: Crater Lake National Park Author: Agee, James K. Year: 1981, 2010 ill., 1 map; "CPSU/UW81-4." Close

• 19. [Image] Failure Analysis Report: Geothermal Heating System Components, Oregon Institute of Technology, Klamath Falls, Oregon

  	The results are presented of an examination of 17 samples obtained from various components of the subject geothermal heating system. The samples obtained for this study were selected to represent the several ...
  	Citation × Citation Citation Abstract Copy Title: Failure Analysis Report: Geothermal Heating System Components, Oregon Institute of Technology, Klamath Falls, Oregon Author: Mitchell, D.A. Year: 1979 The results are presented of an examination of 17 samples obtained from various components of the subject geothermal heating system. The samples obtained for this study were selected to represent the several materials of construction and equipment ages of the various components in this system. For purposes of this report, the samples have been grouped into three categories by material: ferrous, non-ferrous and non-metallic. Failures in these components have taken the form of leakage at solder joints, tubing perforation, scaling, or valve seizure. Most components evaluated in this examination have been in service for 14 years. This work documents these failures, discusses their causes and recommends possible remedial action Title: Failure Analysis Report: Geothermal Heating System Components, Oregon Institute of Technology, Klamath Falls, Oregon Author: Mitchell, D.A. Year: 1979 The results are presented of an examination of 17 samples obtained from various components of the subject geothermal heating system. The samples obtained for this study were selected to represent the several materials of construction and equipment ages of the various components in this system. For purposes of this report, the samples have been grouped into three categories by material: ferrous, non-ferrous and non-metallic. Failures in these components have taken the form of leakage at solder joints, tubing perforation, scaling, or valve seizure. Most components evaluated in this examination have been in service for 14 years. This work documents these failures, discusses their causes and recommends possible remedial action Close

• 20. [Image] Failure Analysis Report: Geothermal Heating System Components, Oregon Institute of Technology, Klamath Falls, Oregon

  	The results are presented of an examination of 17 samples obtained from various components of the subject geothermal heating system. The samples obtained for this study were selected to represent the several ...
  	Citation × Citation Citation Abstract Copy Title: Failure Analysis Report: Geothermal Heating System Components, Oregon Institute of Technology, Klamath Falls, Oregon Author: Mitchell, D.A. Year: 1979 The results are presented of an examination of 17 samples obtained from various components of the subject geothermal heating system. The samples obtained for this study were selected to represent the several materials of construction and equipment ages of the various components in this system. For purposes of this report, the samples have been grouped into three categories by material: ferrous, non-ferrous and non-metallic. Failures in these components have taken the form of leakage at solder joints, tubing perforation, scaling, or valve seizure. Most components evaluated in this examination have been in service for 14 years. This work documents these failures, discusses their causes and recommends possible remedial action Title: Failure Analysis Report: Geothermal Heating System Components, Oregon Institute of Technology, Klamath Falls, Oregon Author: Mitchell, D.A. Year: 1979 The results are presented of an examination of 17 samples obtained from various components of the subject geothermal heating system. The samples obtained for this study were selected to represent the several materials of construction and equipment ages of the various components in this system. For purposes of this report, the samples have been grouped into three categories by material: ferrous, non-ferrous and non-metallic. Failures in these components have taken the form of leakage at solder joints, tubing perforation, scaling, or valve seizure. Most components evaluated in this examination have been in service for 14 years. This work documents these failures, discusses their causes and recommends possible remedial action Close