Three-mile fish ladder at Cazadero Dam

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.

Photo Date: 1969 circa

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Author: NOAA Central Library Historical Fisheries Collection; P. 492 of "Our Changing Fisheries" 1970 Centenary NMFS centenary volume/ NOAA

License: Public Domain Mark 1.0 (Public domain)

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Added On	17th October 2015
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