Last stocked
May 12, 2026
Plants on record
18
Since 2011
Species recorded
1
Average size
3 in
Elevation
3,816.8 ft
Access and facts
- Water type
- reservoir
- Nearest town
- Helena
- Boat ramp
- Yes
- Facilities
- restrooms
Reservoir built 1957-58 on the eastern edge of the Helena Valley, 8 miles northeast of Helena via York Road. Anglers access the water at the lone boat ramp; a popular winter and summer kokanee fishery, with picnic areas and toilets nearby. Safe ice typically forms January-late February.
Sources: water_type , access , shore_notes , shore_notes , nearest_town , facilities , photos , fishing_notes
How Helena Valley Regulating Reservoir is stocked
The first plant of the year usually falls in the second week of May. In 2026 it was May 12, 2026, about when it usually is.
Fish at Helena Valley Regulating Reservoir
Fishing Helena Valley Regulating Reservoir is most likely to be for Kokanee Salmon. All 18 plants on record are Kokanee Salmon.
Around the dates Helena Valley Regulating Reservoir is stocked, Open-Meteo's 2016-2025 archive puts mean air temperature at 53.8°F in May, 45.5°F in October, 42.5°F in April. That is air temperature at these coordinates, not water temperature. Open-Meteo
Kokanee Salmon 18 plants
- Plants
- 18 of 18
- Last stocked
- May 12, 2026
- Average length
- 3 in
Fishing Helena Valley Regulating Reservoir
The Montana Department of Fish, Wildlife and Parks have identified six species of fish in Helena Valley Regulating Reservoir, with 3 of them being native to the state. These species include burbot, common carp, kokanee salmon, longnose sucker, white sucker, and yellow perch. The reservoir is notably a fishery for Kokanee.
Sources: en.wikipedia.org
Fish stocked per year
- 75,9082011
- 75,5582012
- 74,4832013
- 65,1712014
- 68,1922015
- 65,0032016
- 50,0922017
- 49,5282018
- 57,7502019
- 55,4202020
- 40,0092021
- 50,0142022
- 31,2152023
- 62,4152024
- 30,5252025
- 31,0102026
Stocking history
Showing 15 of 18 plants Showing 18 plants
| Date | Species | Quantity | Avg. length | Source |
|---|---|---|---|---|
| May 12, 2026 | Kokanee Salmon | 31,010 | 3.43 in | report |
| May 19, 2025 | Kokanee Salmon | 30,525 | 3.56 in | report |
| May 17, 2024 | Kokanee Salmon | 62,415 | 3.42 in | report |
| May 10, 2023 | Kokanee Salmon | 31,215 | 3.42 in | report |
| May 10, 2022 | Kokanee Salmon | 50,014 | 3.48 in | report |
| April 28, 2021 | Kokanee Salmon | 40,009 | 2.9 in | report |
| May 13, 2020 | Kokanee Salmon | 55,420 | 2.5 in | report |
| May 16, 2019 | Kokanee Salmon | 57,750 | 2 in | report |
| May 22, 2018 | Kokanee Salmon | 49,528 | 2 in | report |
| May 10, 2017 | Kokanee Salmon | 50,092 | 2.01 in | report |
| May 5, 2016 | Kokanee Salmon | 65,003 | 1.92 in | report |
| May 19, 2015 | Kokanee Salmon | 68,192 | 2.1 in | report |
| May 13, 2014 | Kokanee Salmon | 65,171 | 2.64 in | report |
| October 11, 2013 | Kokanee Salmon | 36,966 | 4.74 in | report |
| May 15, 2013 | Kokanee Salmon | 37,517 | 2.87 in | report |
| October 18, 2012 | Kokanee Salmon | 38,000 | 4.99 in | report |
| May 11, 2012 | Kokanee Salmon | 37,558 | 2.7 in | report |
| May 11, 2011 | Kokanee Salmon | 75,908 | 3.24 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.