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• 11. [Image] Oregon, Crater Lake National Park and vicinity: 25 minute series

  	1 map:col.; Wallis provides a color key for Rogue, Klamath, Umqua, and Lake drainage; Relief shown by contours, spot heights and shading; Datum is mean sea level; Contour interval 50 feet; "N4242-W12155/25;" ...
  	Citation × Citation Citation Abstract Copy Title: Oregon, Crater Lake National Park and vicinity: 25 minute series Author: Geological Survey (U.S.) Year: 1946, 2008, 2009 1 map:col.; Wallis provides a color key for Rogue, Klamath, Umqua, and Lake drainage; Relief shown by contours, spot heights and shading; Datum is mean sea level; Contour interval 50 feet; "N4242-W12155/25;" Includes bibliographic references (leaves 118- 120) Title: Oregon, Crater Lake National Park and vicinity: 25 minute series Author: Geological Survey (U.S.) Year: 1946, 2008, 2009 1 map:col.; Wallis provides a color key for Rogue, Klamath, Umqua, and Lake drainage; Relief shown by contours, spot heights and shading; Datum is mean sea level; Contour interval 50 feet; "N4242-W12155/25;" Includes bibliographic references (leaves 118- 120) Close

• 12. [Image] Status of Oregon's bull trout : distribution, life history, limiting factors, management considerations, and status

  	EXECUTIVE SUMMARY Limited historical references indicate that bull trout Salvelinus confluentus in Oregon were once widely spread throughout at least 12 basins in the Klamath River and Columbia River ...
  	Citation × Citation Citation Abstract Copy Title: Status of Oregon's bull trout : distribution, life history, limiting factors, management considerations, and status Author: Buchanan, David V; Hanson, Mary L; Hooton, Robert M Year: 1997, 2007, 2005 EXECUTIVE SUMMARY Limited historical references indicate that bull trout Salvelinus confluentus in Oregon were once widely spread throughout at least 12 basins in the Klamath River and Columbia River systems. No bull trout have been observed in Oregon's coastal systems. A total of 69 bull trout populations in 12 basins are currently identified in Oregon. A comparison of the 1991 bull trout status (Ratliff and Ho well 1992) to the revised 1996 status found that 7 populations were newly discovered and 1 population showed a positive or upgraded status while 22 populations showed a negative or downgraded status. The general downgrading of 32% of Oregon's bull trout populations appears largely due to increased survey efforts and increased survey accuracy rather than reduced numbers or distribution. However, three populations in the upper Klamath Basin, two in the Walla Walla Basin, and one in the Willamette Basin showed decreases in estimated population abundance or distribution. Some Oregon river basins have bull trout populations at extreme risk of extinction. This statewide status review listed only 19% of the bull trout populations in Oregon with a ulow risk of extinction" or "of special concern." Therefore, 81% of Oregon's bull trout populations are considered to be at a "moderate risk of extinction," "high risk of extinction," or "probably extinct." Populations in the Hood, Klamath, and Powder basins, as well as the Odell Lake population in the Deschutes basin, which contain only a few remaining bull trout, are examples of populations having a "moderate" or "high risk" of extinction. Approximately 55% of current bull trout distribution occurs on lands managed by the U.S. Forest Service. A much smaller proportion occurs on Bureau of Land Management managed lands (2%). Only 16% of current bull trout distribution occurs within a protected area defined as Wilderness, Wild and Scenic River, or within a National Park. The Northwest Forest Plan, Inland Native Fish Strategy, and Interim Strategies for Managing Anadromous Fish-producing Watersheds in Eastern Oregon and Washington, Idaho, and Portions of California have provided increased protection for bull trout habitat depending on their scope and geographic areas affected, and the extent to which they are being effectively implemented in watersheds containing bull trout. Recent reduction in timber production on National Forests (up to 50% in western Oregon National Forests and over 30% in eastern Oregon National Forests) should help improve riparian and stream habitat conditions for bull trout. The remaining bull trout distribution occurs on private, state, or tribal owned lands. A comparison of approximately 39 locations throughout the state with protective angling regulations on bull trout (in some areas more than one bull trout population is protected by one regulation) shows that all state managed areas were upgraded in a protective angling status or at least maintained in 1996 compared to 1989. Restrictive angling regulations prohibit angler harvest of all bull trout populations in Oregon except for one in the Deschutes Basin. Restrictive bull trout angling regulation changes (including the elimination of bull Vll trout harvest in all spawning areas) may be the major reasons why the Metolius River/Lake Billy Chinook and mainstem McKenzie River populations have shown significant increases in abundance. Statewide stocking of non-native brook trout, including the high lakes stocking program, has been discontinued in locations where managers believe brook trout could migrate downstream and potentially interact with native bull trout. Hatchery stocking of legal rainbow trout to promote recreational fisheries has been discontinued in most locations near bull trout populations to avoid incidental catch of bull trout. The spatial and temporal distributions of bull trout reported for each river basin in this status report should be used as an accurate baseline for fisheries managers. Current distribution and relative change of distribution should be useful indicators of population health and status. The GIS maps in this report provide a template to add new layers of data such as critical spawning and juvenile rearing areas, or as a method to compare distribution changes through time. Length frequency data are presented for most Oregon bull trout populations. This should provide estimates for the presence of multiple age classes and the percent of fluvial size life history component. Vlll Title: Status of Oregon's bull trout : distribution, life history, limiting factors, management considerations, and status Author: Buchanan, David V; Hanson, Mary L; Hooton, Robert M Year: 1997, 2007, 2005 EXECUTIVE SUMMARY Limited historical references indicate that bull trout Salvelinus confluentus in Oregon were once widely spread throughout at least 12 basins in the Klamath River and Columbia River systems. No bull trout have been observed in Oregon's coastal systems. A total of 69 bull trout populations in 12 basins are currently identified in Oregon. A comparison of the 1991 bull trout status (Ratliff and Ho well 1992) to the revised 1996 status found that 7 populations were newly discovered and 1 population showed a positive or upgraded status while 22 populations showed a negative or downgraded status. The general downgrading of 32% of Oregon's bull trout populations appears largely due to increased survey efforts and increased survey accuracy rather than reduced numbers or distribution. However, three populations in the upper Klamath Basin, two in the Walla Walla Basin, and one in the Willamette Basin showed decreases in estimated population abundance or distribution. Some Oregon river basins have bull trout populations at extreme risk of extinction. This statewide status review listed only 19% of the bull trout populations in Oregon with a ulow risk of extinction" or "of special concern." Therefore, 81% of Oregon's bull trout populations are considered to be at a "moderate risk of extinction," "high risk of extinction," or "probably extinct." Populations in the Hood, Klamath, and Powder basins, as well as the Odell Lake population in the Deschutes basin, which contain only a few remaining bull trout, are examples of populations having a "moderate" or "high risk" of extinction. Approximately 55% of current bull trout distribution occurs on lands managed by the U.S. Forest Service. A much smaller proportion occurs on Bureau of Land Management managed lands (2%). Only 16% of current bull trout distribution occurs within a protected area defined as Wilderness, Wild and Scenic River, or within a National Park. The Northwest Forest Plan, Inland Native Fish Strategy, and Interim Strategies for Managing Anadromous Fish-producing Watersheds in Eastern Oregon and Washington, Idaho, and Portions of California have provided increased protection for bull trout habitat depending on their scope and geographic areas affected, and the extent to which they are being effectively implemented in watersheds containing bull trout. Recent reduction in timber production on National Forests (up to 50% in western Oregon National Forests and over 30% in eastern Oregon National Forests) should help improve riparian and stream habitat conditions for bull trout. The remaining bull trout distribution occurs on private, state, or tribal owned lands. A comparison of approximately 39 locations throughout the state with protective angling regulations on bull trout (in some areas more than one bull trout population is protected by one regulation) shows that all state managed areas were upgraded in a protective angling status or at least maintained in 1996 compared to 1989. Restrictive angling regulations prohibit angler harvest of all bull trout populations in Oregon except for one in the Deschutes Basin. Restrictive bull trout angling regulation changes (including the elimination of bull Vll trout harvest in all spawning areas) may be the major reasons why the Metolius River/Lake Billy Chinook and mainstem McKenzie River populations have shown significant increases in abundance. Statewide stocking of non-native brook trout, including the high lakes stocking program, has been discontinued in locations where managers believe brook trout could migrate downstream and potentially interact with native bull trout. Hatchery stocking of legal rainbow trout to promote recreational fisheries has been discontinued in most locations near bull trout populations to avoid incidental catch of bull trout. The spatial and temporal distributions of bull trout reported for each river basin in this status report should be used as an accurate baseline for fisheries managers. Current distribution and relative change of distribution should be useful indicators of population health and status. The GIS maps in this report provide a template to add new layers of data such as critical spawning and juvenile rearing areas, or as a method to compare distribution changes through time. Length frequency data are presented for most Oregon bull trout populations. This should provide estimates for the presence of multiple age classes and the percent of fluvial size life history component. Vlll Close

• 13. [Image] Influences of human activity on stream temperatures and existence of cold-water fish in streams with elevated temperature: report of a workshop: Independent Multidisciplinary Science Team, Corvallis, OR, October 5-6, 2000

  	Executive Summary The Independent Multidisciplinary Science Team (IMST) convened a panel of experts on stream temperature and fish ecology on October 5-6, 2000 for a scientific workshop on human influences ...
  	Citation × Citation Citation Abstract Copy Title: Influences of human activity on stream temperatures and existence of cold-water fish in streams with elevated temperature: report of a workshop: Independent Multidisciplinary Science Team, Corvallis, OR, October 5-6, 2000 Author: Independent Multidisciplinary Science Team (Oregon) Year: 2000, 2008, 2005 Executive Summary The Independent Multidisciplinary Science Team (IMST) convened a panel of experts on stream temperature and fish ecology on October 5-6, 2000 for a scientific workshop on human influences on stream temperature and responses by salmonids. The workshop was designed to review and discuss scientifically credible data and publications about 1) factors related to human activity that influence stream temperature and 2) behavioral, physical, and ecological mechanisms of cold water fish species for existing in streams with elevated temperatures. The goal of the workshop was to review empirical evidence and to identify points of agreement, disagreement, and knowledge gaps within the scientific community concerning the factors that influence stream temperature and fish responses to elevated temperatures. This information will assist the IMST in preparing a broader temperature report on Oregon's stream temperature water quality standards and their implementation. This report is prepared by the IMST. It was reviewed by workshop participants and revised by the IMST accordingly. The report includes abstracts of plenary presentations on factors that influence stream temperatures and fish responses, and the results of group discussions. The workshop participants focused on three main questions and were asked to list statements of agreement and disagreement, and to identify gaps in the scientific knowledge related to each question: ? How and where does riparian vegetation influence stream temperature? ? Do other changes in streams cause increases in stream temperature? ? How can apparently healthy fish populations exist in streams with temperatures higher than laboratory and field studies would indicate as healthy? The workshop participants provided answers to the questions in the form of bullets. The answers below represent the IMST's summation of the workshop findings and were reviewed by the participants. Several gaps in the scientific basis for specific questions or relationships were identified. The participants found no areas of disagreement for which technical information was available. They noted that any disagreements were not related to scientific interpretation, but were based on concerns or opinions about application, regulation, and management. How and where does riparian vegetation influence stream temperature? The influence of riparian vegetation on stream temperature is cumulative and complex, varying by site, over time, and across regions. Riparian vegetation can directly affect stream temperature by intercepting solar radiation and reducing stream heating. The influence of riparian shade in controlling temperature declines as streams widen in downstream reaches, but the role of riparian vegetation in providing water quality and fish habitat benefits continues to be important. Besides providing shade, riparian vegetation can also indirectly affect stream temperature by influencing microclimate, affecting channel morphology, affecting stream flow, influencing wind speed, affecting humidity, affecting soil temperature, using water, influencing air temperature, enhancing infiltration, and influencing thermal radiation. It is critical to know the site potential to understand what vegetation a site can support. There is not a good scientific understanding of how much vegetation shading is required to affect stream temperature. 1 This lack of understanding may be due to the spatial and temporal variability in landscape components, and the resulting variability in both the direct and indirect influences of vegetation on stream temperature. Therefore, it is difficult to generalize about the effects of vegetation on stream temperature. Do other changes in streams cause increases in stream temperature? The answer to this question is yes, other physical changes in the stream system can modify stream temperatures. Stream temperature is a product of complex interactions between geomorphology, soil, hydrology, vegetation, and climate within a watershed. Changes in these factors will result in changes in stream temperature. Human activities influence stream temperature by affecting one or more of four major components: riparian vegetation, channel morphology, hydrology, and surface/subsurface interactions. Stream systems vary substantially across the landscape, and site-specific information is critical to understanding stream temperature responses to human activities. How can apparently healthy fish populations exist in streams with temperatures higher than laboratory and field studies would indicate as healthy? Workshop participants identified several mechanisms that might explain the ability of fish populations to exist at higher than expected temperatures. The first mechanism was that the fish may have physiological adaptations to survive exposures to high temperatures. A second possibility was that stream habitats may contain cooler microhabitats that fish can occupy as refuge from higher temperatures. A third consideration is that ecological interactions may be different under differing thermal conditions resulting, for example, in changes in disease virulence or cumulative effects of stressors. Finally, since substantial differences exist between laboratory and field studies, it is difficult to apply results of laboratory studies to fish responses in the field. It is important to note that these proposed mechanisms are speculative and, as the list of gaps indicates, substantial experimental work is required to establish their influences on fish in different stream systems. Workshop Summaiy Workshop participants recognized gaps in the available science. Additional knowledge about human influences on stream temperatures and, consequently, influences on cold-water fish populations, will improve our ability to prevent further degradation of stream habitat and will enhance efforts geared towards the recovery of depressed fish populations. Even with these gaps, there was enough agreement on factors that influence stream temperature to indicate information is available to start developing and implementing management practices that are designed to reduce stream warming. It was suggested that managers should consider riparian vegetation, channel morphology, and hydrology, and should account for site differences. Title: Influences of human activity on stream temperatures and existence of cold-water fish in streams with elevated temperature: report of a workshop: Independent Multidisciplinary Science Team, Corvallis, OR, October 5-6, 2000 Author: Independent Multidisciplinary Science Team (Oregon) Year: 2000, 2008, 2005 Executive Summary The Independent Multidisciplinary Science Team (IMST) convened a panel of experts on stream temperature and fish ecology on October 5-6, 2000 for a scientific workshop on human influences on stream temperature and responses by salmonids. The workshop was designed to review and discuss scientifically credible data and publications about 1) factors related to human activity that influence stream temperature and 2) behavioral, physical, and ecological mechanisms of cold water fish species for existing in streams with elevated temperatures. The goal of the workshop was to review empirical evidence and to identify points of agreement, disagreement, and knowledge gaps within the scientific community concerning the factors that influence stream temperature and fish responses to elevated temperatures. This information will assist the IMST in preparing a broader temperature report on Oregon's stream temperature water quality standards and their implementation. This report is prepared by the IMST. It was reviewed by workshop participants and revised by the IMST accordingly. The report includes abstracts of plenary presentations on factors that influence stream temperatures and fish responses, and the results of group discussions. The workshop participants focused on three main questions and were asked to list statements of agreement and disagreement, and to identify gaps in the scientific knowledge related to each question: ? How and where does riparian vegetation influence stream temperature? ? Do other changes in streams cause increases in stream temperature? ? How can apparently healthy fish populations exist in streams with temperatures higher than laboratory and field studies would indicate as healthy? The workshop participants provided answers to the questions in the form of bullets. The answers below represent the IMST's summation of the workshop findings and were reviewed by the participants. Several gaps in the scientific basis for specific questions or relationships were identified. The participants found no areas of disagreement for which technical information was available. They noted that any disagreements were not related to scientific interpretation, but were based on concerns or opinions about application, regulation, and management. How and where does riparian vegetation influence stream temperature? The influence of riparian vegetation on stream temperature is cumulative and complex, varying by site, over time, and across regions. Riparian vegetation can directly affect stream temperature by intercepting solar radiation and reducing stream heating. The influence of riparian shade in controlling temperature declines as streams widen in downstream reaches, but the role of riparian vegetation in providing water quality and fish habitat benefits continues to be important. Besides providing shade, riparian vegetation can also indirectly affect stream temperature by influencing microclimate, affecting channel morphology, affecting stream flow, influencing wind speed, affecting humidity, affecting soil temperature, using water, influencing air temperature, enhancing infiltration, and influencing thermal radiation. It is critical to know the site potential to understand what vegetation a site can support. There is not a good scientific understanding of how much vegetation shading is required to affect stream temperature. 1 This lack of understanding may be due to the spatial and temporal variability in landscape components, and the resulting variability in both the direct and indirect influences of vegetation on stream temperature. Therefore, it is difficult to generalize about the effects of vegetation on stream temperature. Do other changes in streams cause increases in stream temperature? The answer to this question is yes, other physical changes in the stream system can modify stream temperatures. Stream temperature is a product of complex interactions between geomorphology, soil, hydrology, vegetation, and climate within a watershed. Changes in these factors will result in changes in stream temperature. Human activities influence stream temperature by affecting one or more of four major components: riparian vegetation, channel morphology, hydrology, and surface/subsurface interactions. Stream systems vary substantially across the landscape, and site-specific information is critical to understanding stream temperature responses to human activities. How can apparently healthy fish populations exist in streams with temperatures higher than laboratory and field studies would indicate as healthy? Workshop participants identified several mechanisms that might explain the ability of fish populations to exist at higher than expected temperatures. The first mechanism was that the fish may have physiological adaptations to survive exposures to high temperatures. A second possibility was that stream habitats may contain cooler microhabitats that fish can occupy as refuge from higher temperatures. A third consideration is that ecological interactions may be different under differing thermal conditions resulting, for example, in changes in disease virulence or cumulative effects of stressors. Finally, since substantial differences exist between laboratory and field studies, it is difficult to apply results of laboratory studies to fish responses in the field. It is important to note that these proposed mechanisms are speculative and, as the list of gaps indicates, substantial experimental work is required to establish their influences on fish in different stream systems. Workshop Summaiy Workshop participants recognized gaps in the available science. Additional knowledge about human influences on stream temperatures and, consequently, influences on cold-water fish populations, will improve our ability to prevent further degradation of stream habitat and will enhance efforts geared towards the recovery of depressed fish populations. Even with these gaps, there was enough agreement on factors that influence stream temperature to indicate information is available to start developing and implementing management practices that are designed to reduce stream warming. It was suggested that managers should consider riparian vegetation, channel morphology, and hydrology, and should account for site differences. Close

• 14. [Image] Gerber-Willow Valley Watershed Analysis

  	x, 386 p., ill., maps (some col.); Cover title; "July 2003"
  	Citation × Citation Citation Abstract Copy Title: Gerber-Willow Valley Watershed Analysis Author: U.S. Department of the Interior. Bureau of Land Management; Klamath Falls Resource Area Office; U.S. Department of Agriculture. Forest Service; Fremont-Winema National Forests; Modoc National Forest Year: 2003, 2006, 2005 x, 386 p., ill., maps (some col.); Cover title; "July 2003" Title: Gerber-Willow Valley Watershed Analysis Author: U.S. Department of the Interior. Bureau of Land Management; Klamath Falls Resource Area Office; U.S. Department of Agriculture. Forest Service; Fremont-Winema National Forests; Modoc National Forest Year: 2003, 2006, 2005 x, 386 p., ill., maps (some col.); Cover title; "July 2003" Close

• 15. [Image] GLO survey notes, Yonna quadrangle, Oregon--Klamath Co.

  	Notations from General Land Office Survey notes: 1871, 1875; Topographic base map from USGS 7.5-minute quadrangle; Produced by U.S. Geological Survey 1988, revised by USDA Forest Service 1998; NIMA 1768 ...
  	Citation × Citation Citation Abstract Copy Title: GLO survey notes, Yonna quadrangle, Oregon--Klamath Co. Author: Oregon Institute of Technology. Geomatics; Cornachione, Harriet (Professor, Principal Investigator) Year: 2006 Notations from General Land Office Survey notes: 1871, 1875; Topographic base map from USGS 7.5-minute quadrangle; Produced by U.S. Geological Survey 1988, revised by USDA Forest Service 1998; NIMA 1768 IV SW-SERIES V892 Title: GLO survey notes, Yonna quadrangle, Oregon--Klamath Co. Author: Oregon Institute of Technology. Geomatics; Cornachione, Harriet (Professor, Principal Investigator) Year: 2006 Notations from General Land Office Survey notes: 1871, 1875; Topographic base map from USGS 7.5-minute quadrangle; Produced by U.S. Geological Survey 1988, revised by USDA Forest Service 1998; NIMA 1768 IV SW-SERIES V892 Close

• 16. [Image] GLO survey notes, Military Crossing quadrangle, Oregon--Klamath Co.

  	Notations from General Land Office Survey notes: 1866, 1872; Topographic base map from USGS 7.5-minute quadrangle; Produced by the US Geological Survey 1988, revised by USDA Forest Service 1998, NIMA 1769 ...
  	Citation × Citation Citation Abstract Copy Title: GLO survey notes, Military Crossing quadrangle, Oregon--Klamath Co. Author: Oregon Institute of Technology. Geomatics; Cornachione, Harriet (Professor, Principal Investigator) Year: 2006 Notations from General Land Office Survey notes: 1866, 1872; Topographic base map from USGS 7.5-minute quadrangle; Produced by the US Geological Survey 1988, revised by USDA Forest Service 1998, NIMA 1769 IV NW-SERIES V879 Title: GLO survey notes, Military Crossing quadrangle, Oregon--Klamath Co. Author: Oregon Institute of Technology. Geomatics; Cornachione, Harriet (Professor, Principal Investigator) Year: 2006 Notations from General Land Office Survey notes: 1866, 1872; Topographic base map from USGS 7.5-minute quadrangle; Produced by the US Geological Survey 1988, revised by USDA Forest Service 1998, NIMA 1769 IV NW-SERIES V879 Close

• 17. [Image] GLO survey notes, Modoc Point quadrangle, Oregon--Klamath Co.

  	Notations from General Land Office Survey notes: 1872, 1893, 1895; Topographic base map from USGS 7.5-minute quadrangle; Produced by US Geological Survey 1985, revised by USDA Forest Service 1998; NIMA ...
  	Citation × Citation Citation Abstract Copy Title: GLO survey notes, Modoc Point quadrangle, Oregon--Klamath Co. Author: Oregon Institute of Technology. Geomatics; Cornachione, Harriet (Professor, Principal Investigator) Year: 2006 Notations from General Land Office Survey notes: 1872, 1893, 1895; Topographic base map from USGS 7.5-minute quadrangle; Produced by US Geological Survey 1985, revised by USDA Forest Service 1998; NIMA 1668 IV NE-SERIES V892 Title: GLO survey notes, Modoc Point quadrangle, Oregon--Klamath Co. Author: Oregon Institute of Technology. Geomatics; Cornachione, Harriet (Professor, Principal Investigator) Year: 2006 Notations from General Land Office Survey notes: 1872, 1893, 1895; Topographic base map from USGS 7.5-minute quadrangle; Produced by US Geological Survey 1985, revised by USDA Forest Service 1998; NIMA 1668 IV NE-SERIES V892 Close

• 18. [Image] GLO survey notes, Pelican Bay quadrangle, Oregon--Klamath Co.

  	Notations from General Land Office Survey notes: 1880; Topographic base map from USGS 7.5-minute quadrangle; Produced by the US Geological Survey 1985, revised by USDA Forest Service 1998; NIMA 1668 IV ...
  	Citation × Citation Citation Abstract Copy Title: GLO survey notes, Pelican Bay quadrangle, Oregon--Klamath Co. Author: Oregon Institute of Technology. Geomatics; Cornachione, Harriet (Professor, Principal Investigator) Year: 2006 Notations from General Land Office Survey notes: 1880; Topographic base map from USGS 7.5-minute quadrangle; Produced by the US Geological Survey 1985, revised by USDA Forest Service 1998; NIMA 1668 IV NE-SERIES V892 Title: GLO survey notes, Pelican Bay quadrangle, Oregon--Klamath Co. Author: Oregon Institute of Technology. Geomatics; Cornachione, Harriet (Professor, Principal Investigator) Year: 2006 Notations from General Land Office Survey notes: 1880; Topographic base map from USGS 7.5-minute quadrangle; Produced by the US Geological Survey 1985, revised by USDA Forest Service 1998; NIMA 1668 IV NE-SERIES V892 Close

• 19. [Image] GLO survey notes, Pelican Butte quadrangle, Oregon--Klamath Co.

  	Notations from General Land Office Survey notes: 1880; Topographic base map from USGS 7.5-minute quadrangle; Produced by US Geological Survey 1985, revised by USDA Forest Service 1998; NIMA 1669 III SW-SERIES ...
  	Citation × Citation Citation Abstract Copy Title: GLO survey notes, Pelican Butte quadrangle, Oregon--Klamath Co. Author: Oregon Institute of Technology. Geomatics; Cornachione, Harriet (Professor, Principal Investigator) Year: 2006 Notations from General Land Office Survey notes: 1880; Topographic base map from USGS 7.5-minute quadrangle; Produced by US Geological Survey 1985, revised by USDA Forest Service 1998; NIMA 1669 III SW-SERIES V892 Title: GLO survey notes, Pelican Butte quadrangle, Oregon--Klamath Co. Author: Oregon Institute of Technology. Geomatics; Cornachione, Harriet (Professor, Principal Investigator) Year: 2006 Notations from General Land Office Survey notes: 1880; Topographic base map from USGS 7.5-minute quadrangle; Produced by US Geological Survey 1985, revised by USDA Forest Service 1998; NIMA 1669 III SW-SERIES V892 Close

• 20. [Image] GLO survey notes, Riverbed Butte Spring quadrangle, Oregon

  	Notations from General Land Office Survey notes: 1869, 1909; Topographic base map from USGS 7.5-minute quadrangle; Produced by US Geological Survey 1988, revised by USDA Forest Service 1998; NIMA 1869 ...
  	Citation × Citation Citation Abstract Copy Title: GLO survey notes, Riverbed Butte Spring quadrangle, Oregon Author: Oregon Institute of Technology. Geomatics; Cornachione, Harriet (Professor, Principal Investigator) Year: 2006 Notations from General Land Office Survey notes: 1869, 1909; Topographic base map from USGS 7.5-minute quadrangle; Produced by US Geological Survey 1988, revised by USDA Forest Service 1998; NIMA 1869 III NW-SERIES V892 Title: GLO survey notes, Riverbed Butte Spring quadrangle, Oregon Author: Oregon Institute of Technology. Geomatics; Cornachione, Harriet (Professor, Principal Investigator) Year: 2006 Notations from General Land Office Survey notes: 1869, 1909; Topographic base map from USGS 7.5-minute quadrangle; Produced by US Geological Survey 1988, revised by USDA Forest Service 1998; NIMA 1869 III NW-SERIES V892 Close