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• 1. [Image] Chinook on rock

  	Chinook on rock left of middle ladder at the Rock Island Dam
  	Citation × Citation Citation Abstract Copy Title: Chinook on rock Year: 1939 Chinook on rock left of middle ladder at the Rock Island Dam Title: Chinook on rock Year: 1939 Chinook on rock left of middle ladder at the Rock Island Dam Close

• 2. [Image] Dam on Roaring Creek

  	Citation × Citation Citation Abstract Copy Title: Dam on Roaring Creek Year: 1940 Title: Dam on Roaring Creek Year: 1940 Close

• 3. [Image] Obstruction on Coast Fork Willamette

  	Obstruction on Coast Fork Willamette River Ladder has broken down;1938-06
  	Citation × Citation Citation Abstract Copy Title: Obstruction on Coast Fork Willamette Year: 1938 Obstruction on Coast Fork Willamette River Ladder has broken down;1938-06 Title: Obstruction on Coast Fork Willamette Year: 1938 Obstruction on Coast Fork Willamette River Ladder has broken down;1938-06 Close

• 4. [Image] Chinook jumping

  	Chinook jumping over middle rocks at the Rock Island Dam
  	Citation × Citation Citation Abstract Copy Title: Chinook jumping Year: 1939 Chinook jumping over middle rocks at the Rock Island Dam Title: Chinook jumping Year: 1939 Chinook jumping over middle rocks at the Rock Island Dam Close

• 5. [Image] Chinook jumping rock

  	Chinook jumping rock left of middle ladder at the Rock Island Dam
  	Citation × Citation Citation Abstract Copy Title: Chinook jumping rock Year: 1939 Chinook jumping rock left of middle ladder at the Rock Island Dam Title: Chinook jumping rock Year: 1939 Chinook jumping rock left of middle ladder at the Rock Island Dam Close

• 6. [Image] Chinook jumping rock

  	Chinook jumping rock left of middle ladder at the Rock Island Dam
  	Citation × Citation Citation Abstract Copy Title: Chinook jumping rock Year: 1939 Chinook jumping rock left of middle ladder at the Rock Island Dam Title: Chinook jumping rock Year: 1939 Chinook jumping rock left of middle ladder at the Rock Island Dam Close

• 7. [Image] Cedar Creek Falls

  	Powerflume, fish-ladder and mill at high-water stage on Cedar Creek Falls
  	Citation × Citation Citation Abstract Copy Title: Cedar Creek Falls Year: 1937 Powerflume, fish-ladder and mill at high-water stage on Cedar Creek Falls Title: Cedar Creek Falls Year: 1937 Powerflume, fish-ladder and mill at high-water stage on Cedar Creek Falls Close

• 8. [Image] Fish ladder

  	Clearwater dam ladder located near Lewiston, Idaho
  	Citation × Citation Citation Abstract Copy Title: Fish ladder Year: 1937 Clearwater dam ladder located near Lewiston, Idaho Title: Fish ladder Year: 1937 Clearwater dam ladder located near Lewiston, Idaho Close

• 9. [Image] Lewiston Dam ladder and spillway

  	Washington Water Power dam on the Clearwater River in Idaho
  	Citation × Citation Citation Abstract Copy Title: Lewiston Dam ladder and spillway Year: 1937 Washington Water Power dam on the Clearwater River in Idaho Title: Lewiston Dam ladder and spillway Year: 1937 Washington Water Power dam on the Clearwater River in Idaho Close

• 10. [Image] Sunnyside dam

  	Sunnyside diversion dam showing central and south fish ladders. Sunnyside Project
  	Citation × Citation Citation Abstract Copy Title: Sunnyside dam Year: 1941 Sunnyside diversion dam showing central and south fish ladders. Sunnyside Project Title: Sunnyside dam Year: 1941 Sunnyside diversion dam showing central and south fish ladders. Sunnyside Project Close

• 11. [Image] Rosa Dam

  	Fish ladder over Rosa Dam
  	Citation × Citation Citation Abstract Copy Title: Rosa Dam Year: 1941 Fish ladder over Rosa Dam Title: Rosa Dam Year: 1941 Fish ladder over Rosa Dam Close

• 12. [Image] Bottom of fishway

  	Bottom of fishway over lumber mill dam at Carlton, Oregon, on the North Yamhill River;1940-08-24 Photograph from Album 1 page 44
  	Citation × Citation Citation Abstract Copy Title: Bottom of fishway Year: 1940 Bottom of fishway over lumber mill dam at Carlton, Oregon, on the North Yamhill River;1940-08-24 Photograph from Album 1 page 44 Title: Bottom of fishway Year: 1940 Bottom of fishway over lumber mill dam at Carlton, Oregon, on the North Yamhill River;1940-08-24 Photograph from Album 1 page 44 Close

• 13. [Image] Fish ladder on Willamina Creek

  	Citation × Citation Citation Abstract Copy Title: Fish ladder on Willamina Creek Year: 1940 Title: Fish ladder on Willamina Creek Year: 1940 Close

• 14. [Image] Fish ladder near Willamina, Oregon

  	Citation × Citation Citation Abstract Copy Title: Fish ladder near Willamina, Oregon Year: 1940 Title: Fish ladder near Willamina, Oregon Year: 1940 Close

• 15. [Image] Power plant tail-race

  	Power plant tail-race and mouth of fish ladder at the River Mill Power Plant on the Clackamas River;1940-08-23
  	Citation × Citation Citation Abstract Copy Title: Power plant tail-race Year: 1940 Power plant tail-race and mouth of fish ladder at the River Mill Power Plant on the Clackamas River;1940-08-23 Title: Power plant tail-race Year: 1940 Power plant tail-race and mouth of fish ladder at the River Mill Power Plant on the Clackamas River;1940-08-23 Close

• 16. [Image] Dam and fish ladder near Glenwood

  	Consolidated Lumber Company's dam and fish ladder near Glenwood, Oregon, on Gales Creek, a tributary of the Tualatin River; 1940-09-21
  	Citation × Citation Citation Abstract Copy Title: Dam and fish ladder near Glenwood Year: 1940 Consolidated Lumber Company's dam and fish ladder near Glenwood, Oregon, on Gales Creek, a tributary of the Tualatin River; 1940-09-21 Title: Dam and fish ladder near Glenwood Year: 1940 Consolidated Lumber Company's dam and fish ladder near Glenwood, Oregon, on Gales Creek, a tributary of the Tualatin River; 1940-09-21 Close

• 17. [Image] Dam and fish ladder

  	Citation × Citation Citation Abstract Copy Title: Dam and fish ladder Year: 1940 Title: Dam and fish ladder Year: 1940 Close

• 18. [Image] Dam board in fish ladder

  	Coast Fork Willamette River above Cottage Grove, Oregon, showing dam board in poor fish ladder;1938-06
  	Citation × Citation Citation Abstract Copy Title: Dam board in fish ladder Year: 1938 Coast Fork Willamette River above Cottage Grove, Oregon, showing dam board in poor fish ladder;1938-06 Title: Dam board in fish ladder Year: 1938 Coast Fork Willamette River above Cottage Grove, Oregon, showing dam board in poor fish ladder;1938-06 Close

• 19. [Image] Dry fish ladder

  	Dry fish ladder at Mountain States Power Plant at Stayton, Oregon (Chinooks fighting tailrace);1940-08-11
  	Citation × Citation Citation Abstract Copy Title: Dry fish ladder Year: 1940 Dry fish ladder at Mountain States Power Plant at Stayton, Oregon (Chinooks fighting tailrace);1940-08-11 Title: Dry fish ladder Year: 1940 Dry fish ladder at Mountain States Power Plant at Stayton, Oregon (Chinooks fighting tailrace);1940-08-11 Close

• 20. [Image] Mt States Power Co ladder

  	Mountain States Power Company fish ladder;1940-08-09
  	Citation × Citation Citation Abstract Copy Title: Mt States Power Co ladder Year: 1940 Mountain States Power Company fish ladder;1940-08-09 Title: Mt States Power Co ladder Year: 1940 Mountain States Power Company fish ladder;1940-08-09 Close