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NOAA Photo Library Image - fish7957

Three-mile fish ladder at Cazadero Dam. Power dams have changed the environment drastically. Ladders - some remarkably successful - are one means of maintaining runs of salmon against effects of huge enginnering projects. But not all problems have been solved.

Image ID: fish7957, NOAA's Historic Fisheries Collection
Photo Date: 1969 circa
Credit: NOAA Central Library Historical Fisheries Collection; P. 492 of "Our Changing Fisheries" 1970 Centenary NMFS centenary volume

High Resolution Photo Available





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Last Updated:
May 12, 2014