StockerTroutFishing

Montana · Madison County · Park County

Twin Lake (Upper) - stocking report

Twin Lake (Upper) was last stocked on July 16, 2025: 450 Arctic Grayling (5.49 in avg).

Counties
Madison, Park
Species on record
Arctic Grayling, Yellowstone Cutthroat Trout
Records
28 stocking events
Official source
Montana Fish, Wildlife & Parks report

Full stocking history

DateSpeciesFishSizeHatchery
July 16, 2025 Arctic Grayling 450 5.49 in avg Yellowstone River Trout Hatchery
July 8, 2024 Arctic Grayling 300 5.97 in avg Yellowstone River Trout Hatchery
July 25, 2023 Arctic Grayling 600 6.47 in avg Yellowstone River Trout Hatchery
July 15, 2022 Arctic Grayling 225 2.27 in avg Yellowstone River Trout Hatchery
June 15, 2021 Arctic Grayling 215 5.88 in avg Yellowstone River Trout Hatchery
June 15, 2021 Arctic Grayling 185 6.0600000000000005 in avg Yellowstone River Trout Hatchery
July 13, 2020 Arctic Grayling 225 6.3100000000000005 in avg Yellowstone River Trout Hatchery
July 13, 2020 Arctic Grayling 225 6.21 in avg Yellowstone River Trout Hatchery
May 31, 2018 Arctic Grayling 200 6.12 in avg Yellowstone River Trout Hatchery
May 18, 2016 Arctic Grayling 320 4.28 in avg Yellowstone River Trout Hatchery
June 3, 2014 Arctic Grayling 500 5.51 in avg Yellowstone River Trout Hatchery
May 21, 2013 Arctic Grayling 500 5.5 in avg Yellowstone River Trout Hatchery
May 15, 2012 Arctic Grayling 500 4.7 in avg Yellowstone River Trout Hatchery
June 2, 2011 Arctic Grayling 625 4.84 in avg Yellowstone River Trout Hatchery
May 19, 2010 Arctic Grayling 750 4 in avg Yellowstone River Trout Hatchery
July 11, 2009 Arctic Grayling 1,000 5 in avg Yellowstone River Trout Hatchery
July 29, 2008 Arctic Grayling 700 1 in avg Yellowstone River Trout Hatchery
May 28, 2008 Arctic Grayling 750 5.17 in avg Yellowstone River Trout Hatchery
August 7, 2003 Yellowstone Cutthroat Trout 500 2.15 in avg Yellowstone River Trout Hatchery
September 6, 2000 Arctic Grayling 2,452 2.5 in avg Bozeman Fish Cultural Center
July 29, 1992 Arctic Grayling 680 0.9 in avg Flathead Lake Salmon Hatchery
September 12, 1991 Arctic Grayling 680 1.2 in avg Flathead Lake Salmon Hatchery
September 1, 1988 Arctic Grayling 2,818 3 in avg Bozeman Fish Cultural Center
August 31, 1988 Yellowstone Cutthroat Trout 1,020 1.9000000000000001 in avg Yellowstone River Trout Hatchery
August 5, 1985 Arctic Grayling 250 2 in avg Bluewater Springs Trout Hatchery
August 6, 1984 Yellowstone Cutthroat Trout 1,500 1 in avg Washoe Park Trout Hatchery
August 8, 1980 Yellowstone Cutthroat Trout 1,500 2 in avg Yellowstone River Trout Hatchery
August 1, 1979 Yellowstone Cutthroat Trout 225 2 in avg Yellowstone River Trout Hatchery

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: .