Rainbow Trout Stocked · 41 plants · last May 28, 2026 Best: dawn, dusk Martinsdale Reservoir fishing
Martinsdale Reservoir fishing is stocked with Rainbow Trout, Cutthroat Trout, and Brown Trout on a reservoir. Also recorded: Mountain Whitefish. It is stocked about 2.9 times a year since 2011, most often in May and June. Species guides list dawn and dusk for Rainbow Trout and dawn, day, and dusk for Brown Trout.
- Last stocked
- May 28, 2026
- · Rainbow Trout
- Plants on record
- 46
- Since 2011
- Species stocked
- 3 (+1 also recorded)
- Average size
- 4.3 in
- Elevation
- 4,781.2 ft
Fish at Martinsdale Reservoir
Around the dates Martinsdale Reservoir is stocked, Open-Meteo's 2016-2025 archive puts mean air temperature at 48.3°F in May, 58.2°F in June, 56.1°F in September, 41.9°F in October. That is air temperature at these coordinates, not water temperature. Open-Meteo
Rainbow Trout Stocked · 41 plants · last May 28, 2026 Best: dawn, dusk 
Cutthroat Trout Stocked · 3 plants · last June 10, 2014 Last stocked June 10, 2014 · avg 3.9 in · 3 plants
Cutthroat Trout species guide
Brown Trout Stocked · 2 plants · last May 17, 2022 Best: dawn, day, dusk Mountain Whitefish Confirmed present
How Martinsdale Reservoir is stocked
Bair Reservoir (17.1 mi), Chief Joseph Pond (20.9 mi), Lake Sutherlin (25.3 mi), and Newlan Reservoir (33.8 mi) were stocked more recently. Bair Reservoir is also stocked with Rainbow Trout and Cutthroat Trout, Chief Joseph Pond is also stocked with Rainbow Trout, Lake Sutherlin is also stocked with Rainbow Trout, and Newlan Reservoir is also stocked with Rainbow Trout, Brown Trout, and Cutthroat Trout.
Fish stocked in 2011
70,000
Fish stocked in 2012
70,384
Fish stocked in 2013
87,212
Fish stocked in 2014
77,834
Fish stocked in 2015
108,143
Fish stocked in 2016
72,441
Fish stocked in 2017
71,283
Fish stocked in 2018
63,146
Fish stocked in 2019
70,763
Fish stocked in 2020
70,156
Fish stocked in 2021
58,759
Fish stocked in 2022
65,154
Fish stocked in 2023
52,922
Fish stocked in 2024
56,513
Fish stocked in 2025
55,000
Fish stocked in 2026
55,000
Stocking history
| Date | Species | Quantity | Avg. length | Source |
|---|---|---|---|---|
| May 28, 2026 | Rainbow Trout | 29,728 | 5.25 in | report |
| May 14, 2026 | Rainbow Trout | 25,272 | 5.27 in | report |
| May 21, 2025 | Rainbow Trout | 20,569 | 5.34 in | report |
| May 20, 2025 | Rainbow Trout | 34,431 | 5.27 in | report |
| May 21, 2024 | Rainbow Trout | 28,743 | 4.83 in | report |
| May 21, 2024 | Rainbow Trout | 27,770 | 4.87 in | report |
| May 31, 2023 | Rainbow Trout | 10,366 | 4.76 in | report |
| May 25, 2023 | Rainbow Trout | 42,556 | 4.85 in | report |
| October 6, 2022 | Rainbow Trout | 5,277 | 4.63 in | report |
| May 18, 2022 | Rainbow Trout | 49,522 | 3.75 in | report |
| May 17, 2022 | Brown Trout | 10,355 | 3.86 in | report |
| August 17, 2021 | Rainbow Trout | 3,130 | 3.73 in | report |
| May 11, 2021 | Rainbow Trout | 55,629 | 4.3 in | report |
| October 1, 2020 | Rainbow Trout | 15,016 | 4.45 in | report |
| May 4, 2020 | Rainbow Trout | 25,493 | 3.99 in | report |
| May 4, 2020 | Rainbow Trout | 23,611 | 3.96 in | report |
| May 4, 2020 | Rainbow Trout | 6,036 | 3.73 in | report |
| September 25, 2019 | Rainbow Trout | 14,814 | 4.23 in | report |
| June 6, 2019 | Rainbow Trout | 3,523 | 4.5 in | report |
| May 23, 2019 | Rainbow Trout | 17,145 | 3.94 in | report |
| May 13, 2019 | Rainbow Trout | 35,281 | 4.07 in | report |
| September 20, 2018 | Rainbow Trout | 28,270 | 5.49 in | report |
| June 28, 2018 | Rainbow Trout | 4,836 | 5.11 in | report |
| May 14, 2018 | Rainbow Trout | 29,170 | 4.17 in | report |
| May 14, 2018 | Rainbow Trout | 870 | 4.06 in | report |
| September 18, 2017 | Rainbow Trout | 36,272 | 4.75 in | report |
| May 2, 2017 | Rainbow Trout | 12,456 | 3.89 in | report |
| May 2, 2017 | Rainbow Trout | 22,555 | 3.96 in | report |
| September 21, 2016 | Rainbow Trout | 37,438 | 4.85 in | report |
| May 13, 2016 | Rainbow Trout | 3,501 | 5.07 in | report |
| May 13, 2016 | Rainbow Trout | 31,502 | 3.98 in | report |
| October 29, 2015 | Rainbow Trout | 24,830 | 4.48 in | report |
| May 19, 2015 | Rainbow Trout | 25,262 | 4.08 in | report |
| May 19, 2015 | Brown Trout | 12,803 | 3.78 in | report |
| May 14, 2015 | Rainbow Trout | 45,248 | 3.94 in | report |
| June 10, 2014 | Cutthroat Trout | 7,000 | 4.63 in | report |
| May 20, 2014 | Rainbow Trout | 29,892 | 4.18 in | report |
| May 19, 2014 | Rainbow Trout | 40,942 | 3.97 in | report |
| October 30, 2013 | Cutthroat Trout | 10,187 | 2.57 in | report |
| June 19, 2013 | Cutthroat Trout | 7,000 | 4.54 in | report |
| May 21, 2013 | Rainbow Trout | 40,037 | 4.09 in | report |
| May 21, 2013 | Rainbow Trout | 29,988 | 4.24 in | report |
| May 7, 2012 | Rainbow Trout | 45,000 | 3.6 in | report |
| May 7, 2012 | Rainbow Trout | 25,384 | 3.4 in | report |
| May 11, 2011 | Rainbow Trout | 35,000 | 3.5 in | report |
| May 11, 2011 | Rainbow Trout | 35,000 | 3.5 in | report |
Access and facts
- Water type
- reservoir
- Nearest town
- Martinsdale
- Boat ramp
- Yes
- Facilities
- camping, restrooms
About 947-acre reservoir 1 mile east of Martinsdale on the county road (94 Martinsdale Lake Rd). The FWP fishing access site has a concrete boat ramp, toilets, and a primitive campground for tents and trailers. The reservoir is drawn down for irrigation, so levels fluctuate through the season.
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 Martinsdale Reservoir?
Fishing Martinsdale Reservoir usually means Rainbow Trout: Rainbow Trout accounts for 41 of 46 plants on record, ahead of Cutthroat Trout and one more. Rainbow Trout was last stocked May 28, 2026, averaging 4.3 in. Cutthroat Trout was last stocked June 10, 2014, averaging 3.9 in. Brown Trout was last stocked May 17, 2022, averaging 3.8 in. Mountain Whitefish is recorded here outside the stocking reports.
When is Martinsdale Reservoir stocked?
Last stocked May 28, 2026. It is stocked about 2.9 times a year since 2011, most often in May and June.
How big are the fish stocked at Martinsdale Reservoir?
Stocked fish average 4.3 in. Rainbow Trout average 4.3 in. Cutthroat Trout average 3.9 in. Brown Trout average 3.8 in.
How do you get on Martinsdale Reservoir?
There is a boat ramp. The nearest town is Martinsdale. Facilities include camping and restrooms. About 947-acre reservoir 1 mile east of Martinsdale on the county road (94 Martinsdale Lake Rd). The FWP fishing access site has a concrete boat ramp, toilets, and a primitive campground for tents and trailers. The reservoir is drawn down for irrigation, so levels fluctuate through the season.
Which lakes near Martinsdale Reservoir were stocked more recently?
Bair Reservoir (17.1 mi), Chief Joseph Pond (20.9 mi), Lake Sutherlin (25.3 mi), and Newlan Reservoir (33.8 mi) were stocked more recently. Bair Reservoir is also stocked with Rainbow Trout and Cutthroat Trout, Chief Joseph Pond is also stocked with Rainbow Trout, Lake Sutherlin is also stocked with Rainbow Trout, and Newlan Reservoir is also stocked with Rainbow Trout, Brown Trout, and Cutthroat Trout.