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• 41. [Image] Temporary fish ladder

  	Entrance to temporary fish ladder at the Bonneville Dam
  	Citation × Citation Citation Abstract Copy Title: Temporary fish ladder Year: 1937 Entrance to temporary fish ladder at the Bonneville Dam Title: Temporary fish ladder Year: 1937 Entrance to temporary fish ladder at the Bonneville Dam Close

• 42. [Image] Temporary fish ladder

  	Entrance to temporary fish ladder at the Bonneville Dam
  	Citation × Citation Citation Abstract Copy Title: Temporary fish ladder Year: 1937 Entrance to temporary fish ladder at the Bonneville Dam Title: Temporary fish ladder Year: 1937 Entrance to temporary fish ladder at the Bonneville Dam Close

• 43. [Image] Fish ladder over Elgin Dam

  	Fish ladder over Elgin Dam has only 1 pool in the ladder.. Zell Parkhurst is standing on the crest.
  	Citation × Citation Citation Abstract Copy Title: Fish ladder over Elgin Dam Year: 1940 Fish ladder over Elgin Dam has only 1 pool in the ladder.. Zell Parkhurst is standing on the crest. Title: Fish ladder over Elgin Dam Year: 1940 Fish ladder over Elgin Dam has only 1 pool in the ladder.. Zell Parkhurst is standing on the crest. Close

• 44. [Image] Dam and fish ladder

  	Dam and fish ladder on South Fork Clearwater River near Grangeville, Idaho
  	Citation × Citation Citation Abstract Copy Title: Dam and fish ladder Year: 1938 Dam and fish ladder on South Fork Clearwater River near Grangeville, Idaho Title: Dam and fish ladder Year: 1938 Dam and fish ladder on South Fork Clearwater River near Grangeville, Idaho Close

• 45. [Image] Dam and fish ladder

  	Dam and fish ladder on the South Fork Clearwater River near Grangeville, Idaho
  	Citation × Citation Citation Abstract Copy Title: Dam and fish ladder Year: 1938 Dam and fish ladder on the South Fork Clearwater River near Grangeville, Idaho Title: Dam and fish ladder Year: 1938 Dam and fish ladder on the South Fork Clearwater River near Grangeville, Idaho Close

• 46. [Image] River Mill Dam fish ladder

  	Fishway over River Mill Dam on the Clackamas River
  	Citation × Citation Citation Abstract Copy Title: River Mill Dam fish ladder Year: 1940 Fishway over River Mill Dam on the Clackamas River Title: River Mill Dam fish ladder Year: 1940 Fishway over River Mill Dam on the Clackamas River Close

• 47. [Image] Water supply diversion dam

  	City of Union, Oregon, water supply diversion dam and fish ladder. Floyd Bryant taking measurements
  	Citation × Citation Citation Abstract Copy Title: Water supply diversion dam Year: 1941 City of Union, Oregon, water supply diversion dam and fish ladder. Floyd Bryant taking measurements Title: Water supply diversion dam Year: 1941 City of Union, Oregon, water supply diversion dam and fish ladder. Floyd Bryant taking measurements Close

• 48. [Image] Wiley Creek fish ladder

  	Fish ladder on Wiley Creek, a tributary to the South Santiam River, Oregon; 1938
  	Citation × Citation Citation Abstract Copy Title: Wiley Creek fish ladder Year: 1938 Fish ladder on Wiley Creek, a tributary to the South Santiam River, Oregon; 1938 Title: Wiley Creek fish ladder Year: 1938 Fish ladder on Wiley Creek, a tributary to the South Santiam River, Oregon; 1938 Close

• 49. [Image] Dam

  	Citation × Citation Citation Abstract Copy Title: Dam Year: 1940 Title: Dam Year: 1940 Close

• 50. [Image] Fish ladder

  	Citation × Citation Citation Abstract Copy Title: Fish ladder Year: 1940 Title: Fish ladder Year: 1940 Close