Rainbow Trout Stocked · 16 plants · last May 7, 2026 Best: dawn, dusk Sentinel Reservoir fishing
Sentinel Reservoir fishing has Rainbow Trout on the stocking report. It is stocked about once a year since 2011, most often in April and May. Species guides list dawn and dusk as the active times.
- Last stocked
- May 7, 2026
- · Rainbow Trout
- Plants on record
- 16
- Since 2011
- Species recorded
- 1
- Average size
- 2.7 in
- Elevation
- 2,987.6 ft
Fish at Sentinel Reservoir
Around the dates Sentinel Reservoir is stocked, Open-Meteo's 2016-2025 archive puts mean air temperature at 55.7°F in May, 43.4°F in April, 65.3°F in June. That is air temperature at these coordinates, not water temperature. Open-Meteo
Rainbow Trout Stocked · 16 plants · last May 7, 2026 Best: dawn, dusk How Sentinel Reservoir is stocked
Fish stocked in 2011
6,000
Fish stocked in 2012
6,000
Fish stocked in 2013
6,000
Fish stocked in 2014
6,000
Fish stocked in 2015
6,000
Fish stocked in 2016
6,000
Fish stocked in 2017
6,006
Fish stocked in 2018
6,000
Fish stocked in 2019
6,000
Fish stocked in 2020
6,185
Fish stocked in 2021
6,000
Fish stocked in 2022
6,000
Fish stocked in 2023
6,000
Fish stocked in 2024
6,000
Fish stocked in 2025
6,000
Fish stocked in 2026
6,000
Stocking history
| Date | Species | Quantity | Avg. length | Source |
|---|---|---|---|---|
| May 7, 2026 | Rainbow Trout | 6,000 | 2.17 in | report |
| May 14, 2025 | Rainbow Trout | 6,000 | 3.17 in | report |
| May 14, 2024 | Rainbow Trout | 6,000 | 2.92 in | report |
| May 16, 2023 | Rainbow Trout | 6,000 | 2.63 in | report |
| May 10, 2022 | Rainbow Trout | 6,000 | 3.25 in | report |
| May 17, 2021 | Rainbow Trout | 6,000 | 3.12 in | report |
| May 7, 2020 | Rainbow Trout | 6,185 | 3.08 in | report |
| May 13, 2019 | Rainbow Trout | 6,000 | 2.65 in | report |
| May 3, 2018 | Rainbow Trout | 6,000 | 2.47 in | report |
| May 10, 2017 | Rainbow Trout | 6,006 | 2.56 in | report |
| April 7, 2016 | Rainbow Trout | 6,000 | 2.09 in | report |
| April 16, 2015 | Rainbow Trout | 6,000 | 1.89 in | report |
| April 16, 2014 | Rainbow Trout | 6,000 | 2.06 in | report |
| June 27, 2013 | Rainbow Trout | 6,000 | 3.21 in | report |
| May 16, 2012 | Rainbow Trout | 6,000 | 2.71 in | report |
| June 22, 2011 | Rainbow Trout | 6,000 | 3.6 in | report |
Access and facts
An 11.5-acre pond on BLM land. FWP's directions: about 5 miles south of Dry Fork Road, off Highway 191, on an unmarked road.
Drafted by AI from the cited sources and checked before publishing.
Advisories, closures, regulations and water conditions change. Check the Montana Fish, Wildlife & Parks before you go.
Nearest lakes
Common questions
What fish are at Sentinel Reservoir?
Fishing Sentinel Reservoir usually means Rainbow Trout. All 16 plants on record are Rainbow Trout. Rainbow Trout was last stocked May 7, 2026, averaging 2.7 in.
When is Sentinel Reservoir stocked?
Last stocked May 7, 2026. It is stocked about once a year since 2011, most often in April and May.
How big are the fish stocked at Sentinel Reservoir?
Rainbow Trout stocked at Sentinel Reservoir average 2.7 in.
How do you get on Sentinel Reservoir?
An 11.5-acre pond on BLM land. FWP's directions: about 5 miles south of Dry Fork Road, off Highway 191, on an unmarked road.