Last stocked
April 29, 2026
Plants on record
259
Since 2011
Species recorded
2
Average size
7.9 in
Elevation
3,653.7 ft
Access and facts
- Water type
- reservoir
- Nearest town
- Helena
- Boat ramp
- Yes
- ADA accessible
- Yes
- Fee required
- Yes
- Facilities
- restrooms, camping, dock
Black Sandy State Park on the lake's north end has a boat launch, dock, ADA-accessible facilities, and 34 campsites (29 with electric hookups). About 14 miles northeast of Helena on the Missouri River.
Sources: water_type , access , shore_notes , nearest_town , facilities , fishing_notes , watch_outs
How Hauser Reservoir is stocked
The first plant of the year usually falls in the third week of June. In 2026 it was April 29, 2026, earlier than usual.
No plants recorded in 2016.
Helena Valley Regulating Reservoir (3.8 mi) and Spring Meadow Lake (13.1 mi) were stocked more recently. Helena Valley Regulating Reservoir is also stocked with Kokanee Salmon and Spring Meadow Lake is also stocked with Rainbow Trout.
Fish at Hauser Reservoir
Fishing Hauser Reservoir is most likely to be for Rainbow Trout. Rainbow Trout accounts for 245 of 259 plants on record, ahead of Kokanee Salmon.
Around the dates Hauser Reservoir is stocked, Open-Meteo's 2016-2025 archive puts mean air temperature at 45.8°F in October, 60.5°F in September, 63.3°F in June, 72.7°F in July. That is air temperature at these coordinates, not water temperature. Open-Meteo
Rainbow Trout 245 plants
- Plants
- 245 of 259
- Last stocked
- October 9, 2025
- Average length
- 8.2 in
Kokanee Salmon 14 plants
- Plants
- 14 of 259
- Last stocked
- April 29, 2026
- Average length
- 3.7 in
Fishing Hauser Reservoir
Hauser Reservoir, accessible through Black Sandy State Park, is a popular destination for fishing. Anglers can target walleye and trout, with both lake fishing and ice fishing activities available. The park provides access for these fishing opportunities.
Sources: fwp.mt.gov
What to watch for
Black Sandy State Park, which provides access to the reservoir, is an extremely popular weekend location for boating, fishing, camping, and water skiing.
Fish stocked per year
- 132,1792011
- 148,1652012
- 186,5092013
- 168,4002014
- 174,4512015
- 98,6752017
- 76,1162018
- 81,1592019
- 255,0042020
- 152,7302021
- 234,1292022
- 230,7542023
- 293,9502024
- 354,5942025
- 20,0002026
Stocking history
Showing 15 of 259 plants Showing 259 plants
| Date | Species | Quantity | Avg. length | Source |
|---|---|---|---|---|
| April 29, 2026 | Kokanee Salmon | 20,000 | 3.39 in | report |
| October 9, 2025 | Rainbow Trout | 6,656 | 8.9 in | report |
| October 9, 2025 | Rainbow Trout | 6,656 | 8.9 in | report |
| October 7, 2025 | Rainbow Trout | 7,030 | 8.74 in | report |
| October 6, 2025 | Rainbow Trout | 7,196 | 8.68 in | report |
| October 6, 2025 | Rainbow Trout | 7,080 | 8.74 in | report |
| October 3, 2025 | Rainbow Trout | 6,884 | 8.78 in | report |
| October 2, 2025 | Rainbow Trout | 7,325 | 8.56 in | report |
| October 2, 2025 | Rainbow Trout | 6,594 | 8.93 in | report |
| October 1, 2025 | Rainbow Trout | 7,509 | 8.56 in | report |
| September 30, 2025 | Rainbow Trout | 7,842 | 8.43 in | report |
| September 29, 2025 | Rainbow Trout | 7,750 | 8.47 in | report |
| September 25, 2025 | Rainbow Trout | 7,613 | 8.51 in | report |
| September 25, 2025 | Rainbow Trout | 8,061 | 8.4 in | report |
| September 23, 2025 | Rainbow Trout | 8,153 | 8.32 in | report |
| September 22, 2025 | Rainbow Trout | 8,195 | 8.31 in | report |
| September 18, 2025 | Rainbow Trout | 12,152 | 7.74 in | report |
| September 18, 2025 | Rainbow Trout | 12,215 | 7.8 in | report |
| September 17, 2025 | Rainbow Trout | 8,673 | 8.15 in | report |
| June 25, 2025 | Rainbow Trout | 2,976 | 8.49 in | report |
| June 20, 2025 | Rainbow Trout | 10,248 | 8.1 in | report |
| June 20, 2025 | Rainbow Trout | 9,744 | 8.24 in | report |
| June 17, 2025 | Kokanee Salmon | 70,596 | 3.99 in | report |
| June 17, 2025 | Kokanee Salmon | 67,446 | 4.06 in | report |
| May 1, 2025 | Kokanee Salmon | 50,000 | 3.35 in | report |
| October 11, 2024 | Rainbow Trout | 1,653 | 8.24 in | report |
| October 10, 2024 | Rainbow Trout | 8,480 | 8.09 in | report |
| October 9, 2024 | Rainbow Trout | 9,360 | 7.94 in | report |
| October 8, 2024 | Rainbow Trout | 8,569 | 8.2 in | report |
| October 8, 2024 | Rainbow Trout | 8,694 | 8.15 in | report |
| October 4, 2024 | Rainbow Trout | 8,881 | 8.09 in | report |
| October 1, 2024 | Rainbow Trout | 9,942 | 7.85 in | report |
| September 27, 2024 | Rainbow Trout | 10,171 | 7.73 in | report |
| September 20, 2024 | Rainbow Trout | 10,233 | 7.71 in | report |
| June 21, 2024 | Kokanee Salmon | 58,905 | 4.14 in | report |
| June 21, 2024 | Kokanee Salmon | 58,905 | 4.14 in | report |
| May 22, 2024 | Rainbow Trout | 12,495 | 6.46 in | report |
| May 21, 2024 | Rainbow Trout | 18,391 | 6.43 in | report |
| May 21, 2024 | Rainbow Trout | 19,271 | 6.35 in | report |
| May 3, 2024 | Kokanee Salmon | 50,000 | 3.35 in | report |
| October 16, 2023 | Rainbow Trout | 8,451 | 7.85 in | report |
| October 13, 2023 | Rainbow Trout | 9,443 | 7.99 in | report |
| September 29, 2023 | Rainbow Trout | 10,025 | 7.83 in | report |
| September 28, 2023 | Rainbow Trout | 11,024 | 7.58 in | report |
| September 27, 2023 | Rainbow Trout | 10,052 | 7.55 in | report |
| September 27, 2023 | Rainbow Trout | 10,088 | 7.81 in | report |
| September 25, 2023 | Rainbow Trout | 10,608 | 7.68 in | report |
| September 22, 2023 | Rainbow Trout | 9,846 | 7.72 in | report |
| September 20, 2023 | Rainbow Trout | 8,179 | 7.26 in | report |
| September 19, 2023 | Rainbow Trout | 12,207 | 7.32 in | report |
| June 30, 2023 | Rainbow Trout | 11,542 | 8 in | report |
| June 28, 2023 | Rainbow Trout | 7,826 | 8 in | report |
| June 27, 2023 | Rainbow Trout | 9,804 | 8 in | report |
| June 26, 2023 | Rainbow Trout | 11,016 | 8 in | report |
| June 26, 2023 | Rainbow Trout | 9,833 | 8 in | report |
| June 26, 2023 | Kokanee Salmon | 30,810 | 4.33 in | report |
| May 10, 2023 | Kokanee Salmon | 30,444 | 3.4 in | report |
| May 10, 2023 | Kokanee Salmon | 19,556 | 3.4 in | report |
| September 21, 2022 | Rainbow Trout | 7,204 | 7.55 in | report |
| September 20, 2022 | Rainbow Trout | 12,348 | 7.32 in | report |
| September 20, 2022 | Rainbow Trout | 10,423 | 7.43 in | report |
| September 20, 2022 | Rainbow Trout | 11,170 | 7.55 in | report |
| September 20, 2022 | Rainbow Trout | 14,310 | 7.52 in | report |
| September 20, 2022 | Rainbow Trout | 9,490 | 7.47 in | report |
| September 19, 2022 | Rainbow Trout | 13,104 | 7.51 in | report |
| September 19, 2022 | Rainbow Trout | 12,750 | 7.22 in | report |
| July 7, 2022 | Rainbow Trout | 9,969 | 7.85 in | report |
| July 7, 2022 | Rainbow Trout | 1,009 | 7.85 in | report |
| July 6, 2022 | Rainbow Trout | 11,065 | 7.58 in | report |
| June 7, 2022 | Kokanee Salmon | 42,801 | 4.01 in | report |
| May 11, 2022 | Kokanee Salmon | 19,414 | 3.41 in | report |
| May 11, 2022 | Kokanee Salmon | 36,994 | 3.41 in | report |
| May 4, 2022 | Rainbow Trout | 11,342 | 7.52 in | report |
| May 4, 2022 | Rainbow Trout | 10,736 | 7.29 in | report |
| October 7, 2021 | Rainbow Trout | 4,249 | 7.99 in | report |
| September 30, 2021 | Rainbow Trout | 7,557 | 8 in | report |
| September 28, 2021 | Rainbow Trout | 7,797 | 8.05 in | report |
| September 27, 2021 | Rainbow Trout | 7,251 | 7.66 in | report |
| September 24, 2021 | Rainbow Trout | 8,979 | 7.69 in | report |
| September 22, 2021 | Rainbow Trout | 8,852 | 7.72 in | report |
| September 21, 2021 | Rainbow Trout | 10,857 | 7.62 in | report |
| September 21, 2021 | Rainbow Trout | 8,518 | 7.82 in | report |
| September 20, 2021 | Rainbow Trout | 8,976 | 7.68 in | report |
| August 31, 2021 | Rainbow Trout | 15,466 | 6.99 in | report |
| August 31, 2021 | Rainbow Trout | 12,640 | 6.97 in | report |
| July 6, 2021 | Rainbow Trout | 6,160 | 8.85 in | report |
| June 30, 2021 | Rainbow Trout | 7,820 | 8.64 in | report |
| June 30, 2021 | Rainbow Trout | 6,617 | 8.64 in | report |
| June 29, 2021 | Rainbow Trout | 6,829 | 8.69 in | report |
| June 29, 2021 | Rainbow Trout | 6,559 | 8.69 in | report |
| June 24, 2021 | Rainbow Trout | 6,829 | 8.55 in | report |
| June 15, 2021 | Rainbow Trout | 10,774 | 7.76 in | report |
| October 30, 2020 | Rainbow Trout | 8,149 | 8.06 in | report |
| October 29, 2020 | Rainbow Trout | 7,128 | 8.29 in | report |
| October 21, 2020 | Rainbow Trout | 7,546 | 8.03 in | report |
| October 20, 2020 | Rainbow Trout | 7,902 | 8.03 in | report |
| October 20, 2020 | Rainbow Trout | 8,067 | 8.03 in | report |
| October 19, 2020 | Rainbow Trout | 8,052 | 7.97 in | report |
| October 15, 2020 | Rainbow Trout | 8,219 | 7.91 in | report |
| October 7, 2020 | Rainbow Trout | 4,743 | 7.54 in | report |
| October 7, 2020 | Rainbow Trout | 5,184 | 7.78 in | report |
| October 6, 2020 | Rainbow Trout | 9,363 | 7.58 in | report |
| October 6, 2020 | Rainbow Trout | 8,767 | 7.78 in | report |
| October 5, 2020 | Rainbow Trout | 7,797 | 7.55 in | report |
| October 2, 2020 | Rainbow Trout | 7,849 | 8.03 in | report |
| October 2, 2020 | Rainbow Trout | 7,849 | 8.03 in | report |
| September 24, 2020 | Rainbow Trout | 11,313 | 7.2 in | report |
| September 15, 2020 | Rainbow Trout | 2,200 | 8.02 in | report |
| September 14, 2020 | Rainbow Trout | 11,508 | 7.55 in | report |
| September 14, 2020 | Rainbow Trout | 10,218 | 7.9 in | report |
| June 2, 2020 | Kokanee Salmon | 113,150 | 3 in | report |
| September 11, 2019 | Rainbow Trout | 7,167 | 7.69 in | report |
| September 10, 2019 | Rainbow Trout | 7,956 | 8 in | report |
| September 5, 2019 | Rainbow Trout | 6,972 | 7.7 in | report |
| September 4, 2019 | Rainbow Trout | 7,658 | 7.51 in | report |
| September 3, 2019 | Rainbow Trout | 9,979 | 7.42 in | report |
| September 3, 2019 | Rainbow Trout | 7,681 | 7.29 in | report |
| July 3, 2019 | Rainbow Trout | 2,593 | 8.32 in | report |
| July 2, 2019 | Rainbow Trout | 7,410 | 8.3 in | report |
| July 2, 2019 | Rainbow Trout | 8,167 | 8.06 in | report |
| July 1, 2019 | Rainbow Trout | 8,360 | 7.99 in | report |
| July 1, 2019 | Rainbow Trout | 7,216 | 8.36 in | report |
| October 4, 2018 | Rainbow Trout | 10,454 | 7.6 in | report |
| October 3, 2018 | Rainbow Trout | 8,554 | 7.8 in | report |
| October 3, 2018 | Rainbow Trout | 8,752 | 7.7 in | report |
| October 2, 2018 | Rainbow Trout | 9,105 | 7.68 in | report |
| October 2, 2018 | Rainbow Trout | 9,733 | 7.48 in | report |
| July 23, 2018 | Rainbow Trout | 5,280 | 7.8 in | report |
| July 19, 2018 | Rainbow Trout | 7,405 | 7.8 in | report |
| July 18, 2018 | Rainbow Trout | 8,854 | 7.57 in | report |
| July 16, 2018 | Rainbow Trout | 7,979 | 7.45 in | report |
| October 20, 2017 | Rainbow Trout | 5,027 | 9.7 in | report |
| October 13, 2017 | Rainbow Trout | 3,617 | 9.68 in | report |
| October 12, 2017 | Rainbow Trout | 3,617 | 9.68 in | report |
| October 11, 2017 | Rainbow Trout | 4,462 | 9.88 in | report |
| October 11, 2017 | Rainbow Trout | 4,576 | 9.88 in | report |
| October 10, 2017 | Rainbow Trout | 4,575 | 9.6 in | report |
| October 10, 2017 | Rainbow Trout | 4,946 | 9.6 in | report |
| October 6, 2017 | Rainbow Trout | 5,368 | 9.34 in | report |
| October 5, 2017 | Rainbow Trout | 5,599 | 9.36 in | report |
| October 5, 2017 | Rainbow Trout | 4,106 | 8.22 in | report |
| October 5, 2017 | Rainbow Trout | 3,733 | 9.36 in | report |
| October 4, 2017 | Rainbow Trout | 4,266 | 9.36 in | report |
| October 4, 2017 | Rainbow Trout | 5,333 | 9.38 in | report |
| June 28, 2017 | Rainbow Trout | 5,386 | 9.49 in | report |
| June 28, 2017 | Rainbow Trout | 5,386 | 9.49 in | report |
| June 28, 2017 | Rainbow Trout | 5,251 | 9.49 in | report |
| June 28, 2017 | Rainbow Trout | 3,366 | 9.49 in | report |
| June 27, 2017 | Rainbow Trout | 5,386 | 9.49 in | report |
| June 27, 2017 | Rainbow Trout | 5,655 | 9.49 in | report |
| June 27, 2017 | Rainbow Trout | 5,520 | 9.49 in | report |
| June 27, 2017 | Rainbow Trout | 3,500 | 9.49 in | report |
| October 26, 2015 | Rainbow Trout | 7,017 | 8.34 in | report |
| October 23, 2015 | Rainbow Trout | 7,585 | 8.34 in | report |
| October 22, 2015 | Rainbow Trout | 6,740 | 8.67 in | report |
| October 21, 2015 | Rainbow Trout | 6,740 | 8.67 in | report |
| October 20, 2015 | Rainbow Trout | 6,909 | 8.6 in | report |
| October 19, 2015 | Rainbow Trout | 6,688 | 8.7 in | report |
| October 16, 2015 | Rainbow Trout | 7,292 | 8.52 in | report |
| October 15, 2015 | Rainbow Trout | 7,213 | 8.62 in | report |
| October 15, 2015 | Rainbow Trout | 8,334 | 8.21 in | report |
| October 14, 2015 | Rainbow Trout | 8,712 | 7.96 in | report |
| October 14, 2015 | Rainbow Trout | 6,837 | 8.64 in | report |
| October 13, 2015 | Rainbow Trout | 7,444 | 8.46 in | report |
| October 9, 2015 | Rainbow Trout | 4,998 | 9.58 in | report |
| October 9, 2015 | Rainbow Trout | 6,170 | 8.93 in | report |
| October 8, 2015 | Rainbow Trout | 6,967 | 8.72 in | report |
| October 8, 2015 | Rainbow Trout | 7,181 | 8.49 in | report |
| August 12, 2015 | Rainbow Trout | 2,380 | 6.64 in | report |
| August 11, 2015 | Rainbow Trout | 14,995 | 6.65 in | report |
| August 11, 2015 | Rainbow Trout | 15,752 | 6.54 in | report |
| August 6, 2015 | Rainbow Trout | 11,319 | 6.98 in | report |
| June 4, 2015 | Rainbow Trout | 8,589 | 8 in | report |
| June 4, 2015 | Rainbow Trout | 8,589 | 8 in | report |
| October 16, 2014 | Rainbow Trout | 8,099 | 7.07 in | report |
| October 15, 2014 | Rainbow Trout | 9,715 | 7.68 in | report |
| October 15, 2014 | Rainbow Trout | 12,048 | 7.15 in | report |
| October 14, 2014 | Rainbow Trout | 9,755 | 7.67 in | report |
| October 14, 2014 | Rainbow Trout | 8,905 | 7.91 in | report |
| October 10, 2014 | Rainbow Trout | 11,440 | 7.27 in | report |
| October 9, 2014 | Rainbow Trout | 11,440 | 7.27 in | report |
| October 8, 2014 | Rainbow Trout | 11,484 | 7.72 in | report |
| October 8, 2014 | Rainbow Trout | 10,517 | 7.95 in | report |
| October 7, 2014 | Rainbow Trout | 1,961 | 7.33 in | report |
| October 7, 2014 | Rainbow Trout | 7,773 | 7.63 in | report |
| July 9, 2014 | Rainbow Trout | 10,791 | 6.34 in | report |
| July 9, 2014 | Rainbow Trout | 10,359 | 6.34 in | report |
| June 26, 2014 | Rainbow Trout | 6,886 | 9.25 in | report |
| June 26, 2014 | Rainbow Trout | 5,860 | 9.25 in | report |
| June 25, 2014 | Rainbow Trout | 6,582 | 8.89 in | report |
| June 25, 2014 | Rainbow Trout | 6,150 | 9.1 in | report |
| June 24, 2014 | Rainbow Trout | 5,973 | 9.19 in | report |
| June 24, 2014 | Rainbow Trout | 6,132 | 9.1 in | report |
| June 23, 2014 | Rainbow Trout | 6,530 | 8.99 in | report |
| October 22, 2013 | Rainbow Trout | 3,843 | 8.82 in | report |
| October 21, 2013 | Rainbow Trout | 6,406 | 8.82 in | report |
| October 17, 2013 | Rainbow Trout | 7,040 | 8.53 in | report |
| October 17, 2013 | Rainbow Trout | 6,833 | 8.91 in | report |
| October 16, 2013 | Rainbow Trout | 5,896 | 9.05 in | report |
| October 16, 2013 | Rainbow Trout | 5,896 | 9.05 in | report |
| October 15, 2013 | Rainbow Trout | 7,497 | 8.36 in | report |
| October 15, 2013 | Rainbow Trout | 6,656 | 8.76 in | report |
| October 11, 2013 | Rainbow Trout | 6,776 | 8.64 in | report |
| October 9, 2013 | Rainbow Trout | 6,248 | 8.9 in | report |
| October 9, 2013 | Rainbow Trout | 3,677 | 8.56 in | report |
| October 9, 2013 | Rainbow Trout | 3,124 | 8.9 in | report |
| October 8, 2013 | Rainbow Trout | 6,248 | 8.9 in | report |
| October 8, 2013 | Rainbow Trout | 6,248 | 8.9 in | report |
| October 7, 2013 | Rainbow Trout | 6,248 | 8.9 in | report |
| October 1, 2013 | Rainbow Trout | 11,063 | 5.86 in | report |
| October 1, 2013 | Rainbow Trout | 1,234 | 5.34 in | report |
| September 27, 2013 | Rainbow Trout | 15,000 | 5.85 in | report |
| September 26, 2013 | Rainbow Trout | 10,681 | 5.26 in | report |
| September 26, 2013 | Rainbow Trout | 5,625 | 5.85 in | report |
| September 24, 2013 | Rainbow Trout | 10,445 | 5.32 in | report |
| September 24, 2013 | Rainbow Trout | 3,637 | 6.6 in | report |
| June 20, 2013 | Rainbow Trout | 7,876 | 8.31 in | report |
| June 19, 2013 | Rainbow Trout | 8,078 | 8.31 in | report |
| June 19, 2013 | Rainbow Trout | 8,078 | 8.31 in | report |
| June 19, 2013 | Rainbow Trout | 8,078 | 8.31 in | report |
| June 19, 2013 | Rainbow Trout | 8,078 | 8.31 in | report |
| October 4, 2012 | Rainbow Trout | 5,082 | 9.1 in | report |
| October 4, 2012 | Rainbow Trout | 5,082 | 9.1 in | report |
| October 3, 2012 | Rainbow Trout | 5,544 | 9.4 in | report |
| October 3, 2012 | Rainbow Trout | 5,544 | 9.4 in | report |
| October 2, 2012 | Rainbow Trout | 12,778 | 9.1 in | report |
| October 2, 2012 | Rainbow Trout | 12,777 | 9.1 in | report |
| October 1, 2012 | Rainbow Trout | 12,003 | 9.3 in | report |
| October 1, 2012 | Rainbow Trout | 12,003 | 9.3 in | report |
| September 28, 2012 | Rainbow Trout | 6,776 | 8.9 in | report |
| September 27, 2012 | Rainbow Trout | 5,808 | 9.4 in | report |
| September 26, 2012 | Rainbow Trout | 6,776 | 8.9 in | report |
| September 25, 2012 | Rainbow Trout | 6,776 | 8.9 in | report |
| June 28, 2012 | Rainbow Trout | 7,744 | 8.4 in | report |
| June 27, 2012 | Rainbow Trout | 7,744 | 8.4 in | report |
| June 27, 2012 | Rainbow Trout | 6,160 | 9 in | report |
| June 26, 2012 | Rainbow Trout | 7,392 | 8.5 in | report |
| June 26, 2012 | Rainbow Trout | 7,392 | 8.5 in | report |
| June 25, 2012 | Rainbow Trout | 7,392 | 8.5 in | report |
| June 25, 2012 | Rainbow Trout | 7,392 | 8.5 in | report |
| October 5, 2011 | Rainbow Trout | 11,906 | 7.2 in | report |
| October 5, 2011 | Rainbow Trout | 8,298 | 8.1 in | report |
| October 5, 2011 | Rainbow Trout | 5,667 | 8.1 in | report |
| October 5, 2011 | Rainbow Trout | 4,066 | 7.2 in | report |
| October 3, 2011 | Rainbow Trout | 11,616 | 7.2 in | report |
| September 30, 2011 | Rainbow Trout | 8,448 | 8 in | report |
| September 29, 2011 | Rainbow Trout | 8,659 | 8 in | report |
| September 29, 2011 | Rainbow Trout | 8,479 | 8 in | report |
| September 28, 2011 | Rainbow Trout | 8,096 | 8.2 in | report |
| September 27, 2011 | Rainbow Trout | 6,564 | 8.8 in | report |
| September 27, 2011 | Rainbow Trout | 5,456 | 9.3 in | report |
| July 20, 2011 | Rainbow Trout | 5,236 | 9 in | report |
| July 20, 2011 | Rainbow Trout | 5,082 | 9 in | report |
| July 14, 2011 | Rainbow Trout | 6,134 | 9.1 in | report |
| July 11, 2011 | Rainbow Trout | 5,984 | 9.1 in | report |
| July 11, 2011 | Rainbow Trout | 5,984 | 9.1 in | report |
| July 7, 2011 | Rainbow Trout | 5,592 | 9.5 in | report |
| July 6, 2011 | Rainbow Trout | 5,456 | 9.4 in | report |
| July 6, 2011 | Rainbow Trout | 5,456 | 9.4 in | report |
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Species stocked here
Depth-by-season, top lures, and bait notes for each species stocked here are on its own species guide, linked above.