the klamath and dos rios diversions were heavily opposed by local towns and native american tribes, whose land would have been flooded under the reservoirs. fishermen expressed concerns over the impact of the dams on the salmon runs of north coast rivers, especially the klamath – the largest pacific coast salmon river south of the columbia river. the project would have eliminated 98 percent of the salmon spawning grounds on the klamath. california governor ronald reagan refused to approve the dos rios project, citing economic insensibility and fraudulent claims made by project proponents. the flood control benefits, for example, were largely exaggerated; the dos rios dam would have reduced the record eel river flood crest of 1964 by only had it been in place.