Ririe Reservoir, reservoir in Bonneville County, Idaho, US

Ririe Reservoir is a reservoir on Willow Creek near Ririe, Idaho, impounded by Ririe Dam, which the U.S. Army Corps of Engineers built in 1972. The surrounding land is hilly shrub-steppe covered with sagebrush and bunch grass. The reservoir holds rainbow trout, kokanee salmon, cutthroat trout, smallmouth bass and yellow perch.

The Ririe Dam on Willow Creek was built by the U.S. Army Corps of Engineers and in 1972 hosted the first practical use of steel fibrous shotcrete, applied to a tunnel adit. Its capacity exceeds 100,000 acre-feet. On 14 October 1976 the Corps transferred control of the dam to the U.S. Bureau of Reclamation.

The site has multiple boat ramps, parking areas, and Juniper Park campground with tent and shelter options. Water levels change significantly by season, which affects accessibility to certain spots and fishing conditions, so plan your visit accordingly.

Kokanee salmon fishing peaks in late summer and early fall just before spawning season, when the fish are most active and growing rapidly. Many anglers use specialized techniques like down-riggers to reach fish schools scattered at various depths throughout the water column.