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Lakes / Montana / Forest Lake

Forest Lake, Jefferson County, Montana

3 acres
Surface Area
6,261.52 ft
Surface Elevation

Where It Sits, and How Deep It Goes

Locator - Montana

BillingsMissoulaForest LakeJefferson Co.

46.45 degrees N, 112.17 degrees W - Jefferson County. State and county outlines drawn from Census boundary data; the lake marker is placed by its Montana Fish, Wildlife & Parks coordinates, not by eye. Schematic - not a survey map.

How Forest Lake Stacks Up

Fish Species

Westslope Cutthroat Trout

Species recorded for this lake. Presence only - no abundance ratings.

Facts and Figures

Waterbody ID63168504
CountyJefferson
Coordinates46.4516, -112.1654

Largest Lakes in Montana

#LakeCountySurface AreaMax Depth
1Fort Peck LakeValley233,053 acres-
2Flathead LakeLake122,132 acresAbout 380 ft
3Canyon Ferry LakeBroadwater32,773 acresAbout 170 ft
4Lake KoocanusaLincoln28,723 acres-
5Hungry Horse ReservoirFlathead23,577 acres-
Sources: Montana Fish, Wildlife & Parks lake data (ID 63168504). Verified October 30, 2026.