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The short answer
Altoona Lake, Lower was last stocked on August 8, 1948: 18,000 Cutthroat Trout.
County Granite Species on record Cutthroat Trout Records 1 stocking event Official source Montana Fish, Wildlife & Parks report Location map
Altoona Lake, Lower 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 Altoona Lake, Lower, Granite County Altoona Lake, Lower Conad Pond, Granite County Conad Pond Georgetown Lake, Granite County Georgetown Lake Moose Lake, Granite County Moose Lake Stewart Lake, Granite County Stewart Lake Tamarack Lake, Granite County Tamarack Lake Kaiser Lake, Granite County Kaiser Lake Echo Lake, Granite County Echo Lake East Fork Reservoir, Granite County East Fork Reservoir Granite 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 Date Species Fish Size Hatchery August 8, 1948 Cutthroat Trout 18,000 Washoe Park 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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