The East Pool of the Big Stone National Wildlife Refuge (East Pool) is a reservoir of the Minnesota River with water levels regulated by the United States Army Corps of Engineers in cooperation with the United States Fish and Wildlife Service (USFWS) for waterfowl and shorebirds. Public access is allowed but motorized equipment is not. Shore fishing exists along the face of the highway 75 dam, in its tail waters, and at a handicapped-accessible shore fishing location at No-Bridge, just outside of Odessa. Fishing opportunities also exist at the low flow structure (including handicap-accessible) in the northeast corner of the East Pool. Ice fishing is also common during winter months.
Twenty-three fish species were sampled in 2013 compared to 30 in 2008. Underutilized species such as black bullhead, white sucker, and shorthead redhorse were the most abundant species sampled. Game fish species were sampled in low abundance. Sampled black crappie ranged from 5 - 11 inches, channel catfish from 7 - 25 inches, northern pike from 21 - 32 inches, and walleye from 12 - 17 inches. Although abundances were low, anglers have reported having moderate success for northern pike and walleye, particular during winter.
Future fish management activities include stocking 1.5 million walleye fry in 2014, and fish population assessment in 2018.