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Harpers Lake Fishing and Stocking

Montana. Montana Fish, Wildlife & Parks lists 21 stockings here in the latest year of its data (Rainbow Trout and Westslope Cutthroat Trout), the most recent on Oct 30, 2026. Stocked in April, May, June, July, October, November and December in two or more years.

2026 Stocking

DateSpeciesFishSize
Oct 30, 2026Rainbow Trout15020.77 in
Jun 30, 2026Rainbow Trout1,0088.85 in
Jun 19, 2026Rainbow Trout52010.77 in
Jun 12, 2026Westslope Cutthroat Trout50012.11 in
Jun 9, 2026Rainbow Trout66010.44 in
Apr 28, 2026Rainbow Trout20116.3 in
Apr 27, 2026Rainbow Trout20016.3 in
Apr 17, 2026Rainbow Trout20013.7 in
Mar 23, 2026Rainbow Trout5026.25 in
Mar 11, 2026Rainbow Trout4526.25 in

2025 Stocking

DateSpeciesFishSize
Dec 11, 2025Rainbow Trout9920.77 in
Dec 8, 2025Rainbow Trout2226.25 in
Dec 8, 2025Rainbow Trout4620.77 in
Dec 1, 2025Rainbow Trout4526.25 in
Nov 25, 2025Rainbow Trout1226.25 in
Nov 25, 2025Rainbow Trout4620.77 in
Nov 10, 2025Rainbow Trout7520.77 in
Nov 7, 2025Rainbow Trout7520.77 in
Nov 6, 2025Rainbow Trout7520.77 in
Oct 30, 2025Rainbow Trout2126.23 in
Oct 30, 2025Rainbow Trout3620.77 in
Oct 27, 2025Rainbow Trout30613.48 in
Jul 10, 2025Rainbow Trout5316.12 in
Jul 10, 2025Rainbow Trout1708.37 in
Jul 9, 2025Rainbow Trout12716.12 in
Jul 8, 2025Rainbow Trout1,0228.37 in
Jul 2, 2025Rainbow Trout1,0678.14 in
Jul 1, 2025Westslope Cutthroat Trout50012.6 in
Jun 17, 2025Rainbow Trout15916.12 in
Jun 4, 2025Rainbow Trout36010.78 in
Jun 4, 2025Rainbow Trout7716.12 in
May 27, 2025Rainbow Trout65410.47 in
Apr 10, 2025Rainbow Trout22320.45 in
Apr 2, 2025Rainbow Trout3826 in

2024 Stocking

DateSpeciesFishSize
Dec 5, 2024Rainbow Trout8520.45 in
Dec 5, 2024Rainbow Trout8926 in
Nov 21, 2024Rainbow Trout4826 in
Oct 9, 2024Rainbow Trout8520.45 in
Oct 8, 2024Rainbow Trout8520.43 in
Sep 9, 2024Rainbow Trout8418.18 in
Jul 8, 2024Rainbow Trout21015.3 in
Jun 28, 2024Rainbow Trout20215.3 in
Jun 26, 2024Rainbow Trout2068.8 in
Jun 19, 2024Rainbow Trout16115.3 in
Jun 18, 2024Westslope Cutthroat Trout50013.57 in
Jun 11, 2024Rainbow Trout27211.3 in
May 21, 2024Rainbow Trout18615.3 in
May 20, 2024Rainbow Trout52211.28 in
Apr 25, 2024Rainbow Trout4527.06 in
Apr 18, 2024Rainbow Trout4527.06 in
Apr 11, 2024Rainbow Trout4427.06 in
Apr 10, 2024Rainbow Trout4427.06 in
Apr 5, 2024Rainbow Trout8020.12 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 “Harpers Lake”. 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.