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Lakes / Montana / Blue Lake

Blue Lake, Flathead County, Montana

11 acres
Surface Area
About 70 ft
Max Depth (Approximate)
3,401.36 ft
Surface Elevation

Where It Sits, and How Deep It Goes

Locator - Montana

BillingsMissoulaBlue LakeFlathead Co.

48.66 degrees N, 114.77 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 - Blue Lake

0 ft - SurfaceMax Depth (Approx.) - About 70 ftA Typical Shallow Lake - Under 20 ft Deep

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

How Blue Lake Stacks Up

Fish Species

Brook TroutBurbotNorthern PikePumpkinseedRainbow TroutRedside ShinerYellow Perch

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

Facts and Figures

Waterbody ID67973294
CountyFlathead
Coordinates48.6578, -114.7673

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 67973294); Washington Dept. of Ecology bathymetry (approximate max depth). Verified October 30, 2026.