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Montana stocking report

Helena Valley Regulating Reservoir

80 records Last stocked: May 12, 2026

The short answer

Helena Valley Regulating Reservoir was last stocked on May 12, 2026: 31,010 Kokanee (3.43 in avg).

County
Lewis and Clark
Species on record
Kokanee, Smallmouth Bass
Records
80 stocking events
Official source
Montana Fish, Wildlife & Parks report

Location map

Helena Valley Regulating Reservoir location context

Approximate · county context
Beaverhead County Big Horn County Blaine County Broadwater County Carbon County Carter County Cascade County Chouteau County Custer County Daniels County Dawson County Deer Lodge County Fallon County Fergus County Flathead County Gallatin County Garfield County Glacier County Golden Valley County Granite County Hill County Jefferson County Judith Basin County Lake County Lewis and Clark County Liberty County Lincoln County Madison County McCone County Meagher County Mineral County Missoula County Musselshell County Park County Petroleum County Phillips County Pondera County Powder River County Powell County Prairie County Ravalli County Richland County Roosevelt County Rosebud County Sanders County Sheridan County Silver Bow County Stillwater County Sweet Grass County Teton County Toole County Treasure County Valley County Wheatland County Wibaux County Yellowstone County MT Helena Valley Regulating Reservoir, Lewis and Clark County Helena Valley Regulating Re… Willow Creek Reservoir, Lewis and Clark County Willow Creek Reservoir Nilan Reservoir, Lewis and Clark County Nilan Reservoir Wood Lake, Lewis and Clark County Wood Lake Spring Meadow Lake, Lewis and Clark County Spring Meadow Lake Hauser Reservoir, Lewis and Clark County Hauser Reservoir Holter Reservoir, Lewis and Clark County Holter Reservoir Renshaw Lake, Lewis and Clark County Renshaw Lake Sock Lake, Lewis and Clark County Sock Lake Lewis and Clark County
Helena Valley Regulating ReservoirLewis and Clark County Willow Creek ReservoirLewis and Clark County Nilan ReservoirLewis and Clark County Wood LakeLewis and Clark County Spring Meadow LakeLewis and Clark County

Pins use the finest location published with the stocking record. County-level pins show area context, not an exact access point; confirm access and directions with the official agency source.

Agency records

Full stocking history

DateSpeciesFishSizeHatchery
May 12, 2026 Kokanee 31,010 3.43 in avg Big Springs Trout Hatchery
May 19, 2025 Kokanee 30,525 3.56 in avg Big Springs Trout Hatchery
May 17, 2024 Kokanee 62,415 3.42 in avg Big Springs Trout Hatchery
May 10, 2023 Kokanee 31,215 3.42 in avg Big Springs Trout Hatchery
May 10, 2022 Kokanee 50,014 3.48 in avg Big Springs Trout Hatchery
April 28, 2021 Kokanee 40,009 2.9 in avg Big Springs Trout Hatchery
May 13, 2020 Kokanee 55,420 2.5 in avg Flathead Lake Salmon Hatchery
May 16, 2019 Kokanee 57,750 2 in avg Flathead Lake Salmon Hatchery
May 22, 2018 Kokanee 49,528 2 in avg Flathead Lake Salmon Hatchery
May 10, 2017 Kokanee 50,092 2.0100000000000002 in avg Flathead Lake Salmon Hatchery
May 5, 2016 Kokanee 65,003 1.92 in avg Flathead Lake Salmon Hatchery
May 19, 2015 Kokanee 68,192 2.1 in avg Flathead Lake Salmon Hatchery
May 13, 2014 Kokanee 65,171 2.64 in avg Big Springs Trout Hatchery
October 11, 2013 Kokanee 36,966 4.74 in avg Big Springs Trout Hatchery
May 15, 2013 Kokanee 37,517 2.87 in avg Big Springs Trout Hatchery
October 18, 2012 Kokanee 38,000 4.99 in avg Big Springs Trout Hatchery
May 11, 2012 Kokanee 37,558 2.7 in avg Big Springs Trout Hatchery
May 11, 2011 Kokanee 75,908 3.24 in avg Big Springs Trout Hatchery
October 13, 2010 Kokanee 21,192 4.66 in avg Big Springs Trout Hatchery
October 13, 2010 Kokanee 15,460 4.5200000000000005 in avg Big Springs Trout Hatchery
August 24, 2010 Kokanee 500 4.53 in avg Big Springs Trout Hatchery
May 18, 2010 Kokanee 37,548 2.58 in avg Big Springs Trout Hatchery
October 29, 2009 Kokanee 16,400 4 in avg Big Springs Trout Hatchery
October 16, 2009 Kokanee 38,461 4 in avg Big Springs Trout Hatchery
June 10, 2009 Kokanee 38,212 3 in avg Big Springs Trout Hatchery
October 8, 2008 Kokanee 20,298 4.8 in avg Big Springs Trout Hatchery
October 7, 2008 Kokanee 17,982 4.84 in avg Big Springs Trout Hatchery
May 6, 2008 Kokanee 37,534 2.61 in avg Big Springs Trout Hatchery
September 21, 2007 Kokanee 42,080 3.99 in avg Big Springs Trout Hatchery
May 29, 2007 Kokanee 40,850 2.49 in avg Big Springs Trout Hatchery
September 18, 2006 Kokanee 25,840 4.8 in avg Big Springs Trout Hatchery
May 22, 2006 Kokanee 26,880 2.96 in avg Big Springs Trout Hatchery
May 16, 2005 Kokanee 52,560 2.48 in avg Big Springs Trout Hatchery
May 28, 2004 Kokanee 21,228 3.02 in avg Big Springs Trout Hatchery
May 28, 2004 Kokanee 29,675 3.04 in avg Big Springs Trout Hatchery
May 12, 2003 Kokanee 50,715 2.75 in avg Big Springs Trout Hatchery
June 19, 2002 Kokanee 46,584 2.7 in avg Giant Springs Trout Hatchery
June 13, 2001 Kokanee 50,000 2.5 in avg Giant Springs Trout Hatchery
May 16, 2000 Kokanee 50,925 2.1 in avg Creston National Fish Hatchery
June 2, 1999 Kokanee 35,880 2.5 in avg Flathead Lake Salmon Hatchery
June 2, 1999 Kokanee 4,100 1.6 in avg Flathead Lake Salmon Hatchery
June 16, 1998 Kokanee 36,872 2.5 in avg Giant Springs Trout Hatchery
June 26, 1997 Kokanee 40,000 2.6 in avg Giant Springs Trout Hatchery
July 2, 1996 Kokanee 34,566 2.4 in avg Giant Springs Trout Hatchery
June 30, 1995 Kokanee 42,672 2.6 in avg Giant Springs Trout Hatchery
June 28, 1994 Kokanee 46,170 2.4 in avg Giant Springs Trout Hatchery
June 28, 1993 Kokanee 36,173 2.9 in avg Giant Springs Trout Hatchery
June 11, 1992 Kokanee 18,471 2.2 in avg Giant Springs Trout Hatchery
June 9, 1992 Kokanee 18,318 2.2 in avg Giant Springs Trout Hatchery
May 20, 1991 Kokanee 40,000 2 in avg Giant Springs Trout Hatchery
May 16, 1990 Kokanee 41,000 2 in avg Giant Springs Trout Hatchery
June 27, 1989 Kokanee 20,254 2.4 in avg Giant Springs Trout Hatchery
June 26, 1989 Kokanee 20,007 2.4 in avg Giant Springs Trout Hatchery
May 22, 1988 Kokanee 40,429 1.9000000000000001 in avg Giant Springs Trout Hatchery
July 16, 1987 Kokanee 25,792 1.9000000000000001 in avg Giant Springs Trout Hatchery
July 2, 1986 Kokanee 20,142 2 in avg Giant Springs Trout Hatchery
June 30, 1986 Kokanee 20,142 2 in avg Giant Springs Trout Hatchery
May 10, 1985 Kokanee 39,960 2 in avg Big Springs Trout Hatchery
July 18, 1984 Kokanee 8,190 2 in avg Giant Springs Trout Hatchery
May 17, 1984 Kokanee 20,230 2 in avg Giant Springs Trout Hatchery
June 23, 1983 Kokanee 14,850 2 in avg Giant Springs Trout Hatchery
June 10, 1982 Kokanee 20,608 2 in avg Giant Springs Trout Hatchery
June 4, 1981 Kokanee 21,390 2 in avg Giant Springs Trout Hatchery
June 10, 1980 Kokanee 20,060 2 in avg Giant Springs Trout Hatchery
May 27, 1980 Kokanee 25,088 2 in avg Giant Springs Trout Hatchery
June 13, 1978 Kokanee 47,740 2 in avg Giant Springs Trout Hatchery
May 25, 1977 Kokanee 18,216 2 in avg Giant Springs Trout Hatchery
May 20, 1977 Kokanee 20,064 2 in avg Giant Springs Trout Hatchery
May 21, 1976 Kokanee 22,339 2 in avg Giant Springs Trout Hatchery
May 20, 1976 Kokanee 21,084 2 in avg Giant Springs Trout Hatchery
June 4, 1975 Kokanee 20,056 2 in avg Giant Springs Trout Hatchery
May 27, 1975 Kokanee 20,700 2 in avg Giant Springs Trout Hatchery
May 9, 1974 Kokanee 40,128 2 in avg Yellowstone River Trout Hatchery
May 11, 1973 Kokanee 43,860 2 in avg Yellowstone River Trout Hatchery
May 8, 1973 Kokanee 41,280 2 in avg Yellowstone River Trout Hatchery
April 25, 1973 Kokanee 50,400 2 in avg Yellowstone River Trout Hatchery
May 18, 1972 Kokanee 62,304 2 in avg Washoe Park Trout Hatchery
May 17, 1972 Kokanee 62,620 2 in avg Washoe Park Trout Hatchery
May 11, 1971 Kokanee 25,330 1 in avg Washoe Park Trout Hatchery
August 7, 1967 Smallmouth Bass 11,312 2 in avg Miles City - Federal

Records shown exactly as published by Montana Fish, Wildlife & Parks. An event missing here does not mean the water was not stocked - some plants go unreported or are published elsewhere.

Data source: Montana Fish, Wildlife & Parks. Last updated: .

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