Eureka Reservoir is a reservoir in Teton County is the U.S State of Montana. The reservoir is mainly used for irrigational and recreational purposes.
Eureka Reservoir was designed by the Montana State Water Conservation Board, and was completed in 1936 by the Teton Cooperative Canal Company. The company manages its water levels and irrigation water, and the DNRC regulates the reservoir. Additionally, the Montana Department of Fish, Wildlife, and Parks stocks the lake with fish.
Six species have been indetified in the lake by Montana Department of Fish, Wildlife, and Parks. They include Brook Trout, Brown Trout, Longnose Sucker, Northern Redbelly/Finescale Dace, Rainbow Trout, and White Sucker. The lake is stocked anually with Rainbow Trout, but water levels may determine if the lake is stocked or not.
Eureka Reservoir is located seven miles away from Choteau on Blackleaf Road.