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Lakes / Montana / Ninepipe Reservoir

Ninepipe Reservoir, Montana

1,203 acres
Surface Area
3,007.76 ft
Surface Elevation

Where It Sits, and How Deep It Goes

Locator - Montana

BillingsMissoulaNinepipe ReservoirLake Co.

47.44 degrees N, 114.12 degrees W - Lake 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 Ninepipe Reservoir Stacks Up

Fish Species

Black BullheadLargemouth BassPumpkinseedRainbow TroutYellow Perch

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

Facts and Figures

Waterbody ID67344063
CountyLake
Coordinates47.4427, -114.1189

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 67344063). Verified October 30, 2026.