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Cooney Reservoir Fishing and Stocking

Montana. Montana Fish, Wildlife & Parks lists 7 stockings here in the latest year of its data (Rainbow Trout), the most recent on Oct 13, 2026. Stocked in May, September and October in two or more years.

2026 Stocking

DateSpeciesFishSize
Oct 13, 2026Rainbow Trout7,1689.8 in
Oct 13, 2026Rainbow Trout7,8889.7 in
Sep 15, 2026Rainbow Trout3,65510.24 in
May 21, 2026Rainbow Trout5,1819.0 in
May 20, 2026Rainbow Trout7,8509.0 in
Apr 28, 2026Rainbow Trout13,4396.5 in
Mar 9, 2026Rainbow Trout9,9592.4 in

2025 Stocking

DateSpeciesFishSize
Oct 16, 2025Rainbow Trout5,5259.67 in
Oct 14, 2025Rainbow Trout4,41011.64 in
Oct 13, 2025Rainbow Trout3,40012 in
May 20, 2025Rainbow Trout8,5989.75 in
May 20, 2025Rainbow Trout7,4389.64 in
May 20, 2025Rainbow Trout8,0019.6 in
May 19, 2025Rainbow Trout7,2909.85 in

2024 Stocking

DateSpeciesFishSize
Sep 4, 2024Rainbow Trout57212.44 in
Sep 3, 2024Rainbow Trout1,17012.44 in
May 30, 2024Rainbow Trout7,3009.27 in
May 29, 2024Rainbow Trout4,6539.38 in
May 29, 2024Rainbow Trout3,2669.08 in
May 28, 2024Rainbow Trout8,4939.34 in
May 28, 2024Rainbow Trout9,1549.27 in

About This Data

Every row comes from the stocking information published by Montana Fish, Wildlife & Parks, checked Nov 3, 2026. The agency lists this water as “Cooney Reservoir”. Species and sizes are given as the agency names them; a dash means the agency does not say.

More for Montana Anglers

Stocking dates and places can change without notice; check with the agency before a trip. ReelTourney is not affiliated with Montana Fish, Wildlife & Parks.