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Lakes / Montana / Beta Lake

Beta Lake, Montana

7 acres
Surface Area
About 20 ft
Max Depth (Approximate)
5,795.76 ft
Surface Elevation

Where It Sits, and How Deep It Goes

Locator - Montana

BillingsMissoulaBeta LakeFlathead Co.

48.32 degrees N, 114.03 degrees W - Flathead 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 - Beta Lake

0 ft - SurfaceMax Depth (Approx.) - About 20 ft

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

How Beta Lake Stacks Up

Fish Species

Westslope Cutthroat Trout

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

Facts and Figures

Waterbody ID61139791
CountyFlathead
Coordinates48.3175, -114.0292

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 61139791); Washington Dept. of Ecology bathymetry (approximate max depth). Verified October 30, 2026.