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Mill Hollow Reservoir Fishing and Stocking

Wasatch County, Utah. The Utah Division of Wildlife Resources lists 15 stockings here in the latest year of its data (Brook Trout, Rainbow Trout and Tiger Trout), the most recent on Sep 14, 2026. Stocked in May, June, July, August and September in two or more years.

2026 Stocking

DateSpeciesFishSize
Sep 14, 2026Rainbow Trout50410.99 in
Sep 2, 2026Rainbow Trout50611.07 in
Aug 17, 2026Rainbow Trout50112.4 in
Aug 4, 2026Rainbow Trout50012.53 in
Jul 27, 2026Tiger Trout6883.36 in
Jul 21, 2026Rainbow Trout5009.98 in
Jul 6, 2026Tiger Trout3,3353.35 in
Jul 6, 2026Tiger Trout5153.27 in
Jul 6, 2026Brook Trout1,5032.97 in
Jul 6, 2026Rainbow Trout50110.54 in
Jun 23, 2026Rainbow Trout80111.22 in
Jun 17, 2026Rainbow Trout59911.49 in
Jun 3, 2026Rainbow Trout80012.03 in
May 13, 2026Rainbow Trout36511.02 in
May 13, 2026Rainbow Trout50610.33 in

2025 Stocking

DateSpeciesFishSize
Oct 8, 2025Tiger Trout3,5005.27 in
Sep 16, 2025Rainbow Trout61511 in
Sep 2, 2025Rainbow Trout49910.81 in
Aug 18, 2025Rainbow Trout50010.75 in
Aug 4, 2025Rainbow Trout50110.5 in
Aug 4, 2025Rainbow Trout60011.95 in
Jul 22, 2025Rainbow Trout50010.75 in
Jul 22, 2025Rainbow Trout66411.95 in
Jul 10, 2025Rainbow Trout37510.3 in
Jun 25, 2025Rainbow Trout62510.3 in
Jun 18, 2025Tiger Trout5553.31 in
Jun 18, 2025Brook Trout1,5003.06 in
Jun 12, 2025Rainbow Trout5019.69 in
May 29, 2025Rainbow Trout5029.62 in
May 15, 2025Rainbow Trout4999.73 in

2024 Stocking

DateSpeciesFishSize
Sep 10, 2024Rainbow Trout50010.66 in
Aug 21, 2024Rainbow Trout50010.66 in
Aug 14, 2024Tiger Trout1,52011.46 in
Aug 5, 2024Rainbow Trout50010.66 in
Jul 22, 2024Rainbow Trout50110.12 in
Jul 10, 2024Tiger Trout4,6402.78 in
Jul 10, 2024Brook Trout1,5302.9 in
Jul 8, 2024Rainbow Trout50010.06 in
Jun 24, 2024Rainbow Trout50010.22 in
Jun 24, 2024Rainbow Trout30111.97 in
Jun 17, 2024Rainbow Trout1,50110.24 in
Jun 17, 2024Rainbow Trout96611.67 in

Other Stocked Waters in Wasatch County

About This Data

Every row comes from the stocking information published by the Utah Division of Wildlife Resources, checked Nov 3, 2026. The agency lists this water as “MILL HOLLOW RES”. The full name is from the Utah Division of Wildlife Resources's own list of waters ↗. Species and sizes are given as the agency names them; a dash means the agency does not say.

More for Utah Anglers

Stocking dates and places can change without notice; check with the agency before a trip. ReelTourney is not affiliated with the Utah Division of Wildlife Resources.