LakeCount. Every Lake. Measured.

Lakes / Montana / Mills Lake

Mills Lake, Montana

6 acres
Surface Area
7,904.8 ft
Surface Elevation

Where It Sits, and How Deep It Goes

Locator - Montana

BillingsMissoulaMills LakeRavalli Co.

46.64 degrees N, 114.27 degrees W - Ravalli 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 Mills Lake Stacks Up

Fish Species

Westslope Cutthroat Trout

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

Facts and Figures

Waterbody ID45177806
CountyRavalli
Coordinates46.6373, -114.2663

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 45177806). Verified October 30, 2026.