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Lakes / Montana / Minneopa Lake

Minneopa Lake, Montana

12 acres
Surface Area
About 7 ft
Max Depth (Approximate)
8,193.44 ft
Surface Elevation

Where It Sits, and How Deep It Goes

Locator - Montana

BillingsMissoulaMinneopa LakeBeaverhead Co.

45.39 degrees N, 112.96 degrees W - Beaverhead 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.

Depth Profile - Minneopa Lake

0 ft - SurfaceMax Depth (Approx.) - About 7 ft

Schematic cross-section drawn to one shared depth scale - not a survey or bathymetric map. Max depth is approximate, from state bathymetry.

How Minneopa Lake Stacks Up

Fish Species

Westslope Cutthroat Trout

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

Facts and Figures

Waterbody ID{428C583A-D527-4150-99B3-BEB38261A85B}
CountyBeaverhead
Coordinates45.3924, -112.9642

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 {428C583A-D527-4150-99B3-BEB38261A85B}); Washington Dept. of Ecology bathymetry (approximate max depth). Verified October 30, 2026.