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Lakes / Montana / Louise Lake

Louise Lake, Montana

13 acres
Surface Area
8,862.56 ft
Surface Elevation

Where It Sits, and How Deep It Goes

Locator - Montana

BillingsMissoulaLouise LakeMadison Co.

45.60 degrees N, 112.05 degrees W - Madison 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 Louise Lake Stacks Up

Fish Species

Westslope Cutthroat TroutYellowstone Cutthroat Trout

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

Facts and Figures

Waterbody ID54200269
CountyMadison
Coordinates45.5956, -112.0475

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 54200269). Verified October 30, 2026.