
Lake Del Valle, a scenic reservoir located 10 miles south of Livermore off Interstate 580 at the edge of the Sunol Regional Wilderness, offers an outstanding array of fish species for anglers to pursue. The reservoir is surrounded by over 5,000 acres of beautiful oak-covered hills at an altitude of 745 feet.
My first trip to Del Valle was in 1979. I fished the reservoir with two college friends, Nona Armstrong and Sal Murrietta, and we caught a bunch of bluegill while fishing from a rental boat. Since that time, I have mainly fished Del Valle for trout, but there are a lot more species than bluegill and trout at Del Valle.
Del Valle hosts the most diverse fisheries of any Bay Area lake or reservoir, summed up Ed Culver, East Bay Regional Park District fisheries biologist, in the latest report on the lake’s fish populations. Anglers target rainbow trout, channel catfish, two species of salmon, bluegill, redear sunfish, black crappie, striped bass, largemouth bass, smallmouth bass, as well as several other species of fish. The lake features large resident and self-sustaining fish populations of bluegill, redear sunfish, black crappie, striped bass, largemouth bass, and smallmouth bass, along with regular plants of trout and catfish by the park district and the California Department of Fish and Wildlife.
Del Valle and New Hogan are unique among California reservoirs in that they feature healthy naturally-reproducing populations of stripers. The stripers in Del Valle spawn in the lake’s main tributary, Arroyo Del Valle, and where the creek water merges with the lake waters. The park district and CDFW stock rainbow trout in the fall, winter, and spring when the water temperature is cool. The district then stocks channel catfish in the summer months after the surface water temperature becomes too warm to stock rainbows.