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The short answer
Cascade Lake was last stocked on July 30, 2019: 340 Yellowstone Cutthroat Trout (2.7 in avg).
County Sweet Grass Species on record Yellowstone Cutthroat Trout, Brook Trout Records 6 stocking events Official source Montana Fish, Wildlife & Parks report Location map
Cascade Lake 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 Cascade Lake, Sweet Grass County Cascade Lake Picket Pin Lake, North, Sweet Grass County Picket Pin Lake, North Blue Lake, Sweet Grass County Blue Lake Rainbow Lake #2, Sweet Grass County Rainbow Lake #2 Rainbow Lake #3, Sweet Grass County Rainbow Lake #3 Rainbow Lake #4, Sweet Grass County Rainbow Lake #4 Rainbow Lake 5, Sweet Grass County Rainbow Lake 5 Rainbow Lake 6, Sweet Grass County Rainbow Lake 6 Sunken Rock Lake, Sweet Grass County Sunken Rock Lake Sweet Grass 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.
Looking for a different Cascade Lake? Also on record: Cascade Lake (Essex County, New York) · Cascade Lake (Grant County, Washington) · Cascade Lake (San Juan County, Washington)
Agency records
Full stocking history Date Species Fish Size Hatchery July 30, 2019 Yellowstone Cutthroat Trout 340 2.7 in avg Yellowstone River Trout Hatchery August 1, 2011 Yellowstone Cutthroat Trout 340 2.4 in avg Yellowstone River Trout Hatchery July 28, 1982 Yellowstone Cutthroat Trout 1,012 2 in avg Yellowstone River Trout Hatchery August 24, 1978 Yellowstone Cutthroat Trout 1,000 2 in avg Yellowstone River Trout Hatchery August 27, 1974 Yellowstone Cutthroat Trout 960 1 in avg Yellowstone River Trout Hatchery July 13, 1946 Brook Trout 764 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.
Nearby stocked waters
Data source: Montana Fish, Wildlife & Parks .
Last updated: 2026-07-24 .
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