| Flathead Range | |
| Photo Size: | 275 |
| Country: | United States |
| Region: | Montana |
| Region Type: | State |
| Parent: | Rocky Mountains |
| Elevation Ft: | 9411 |
| Coordinates: | 47.7°N -113.3°W |
| Length Mi: | 111 |
| Length Orientation: | N–S |
| Width Mi: | 70 |
| Width Orientation: | E–W |
| Map: | Montana#USA |
| Map Relief: | 1 |
| Map Size: | 275 |
The Flathead Range[1] is a mountain range of the Northern Rocky Mountains located southeast of Whitefish, Montana in the Great Bear Wilderness, part of the Bob Marshall Wilderness Complex. It is west of the Rocky Mountain Front, east of the Swan Range and southeast of the Whitefish Range. Its west side is drained by the South Fork Flathead River which forms Hungry Horse Reservoir.
The highest peak is Red Mountain at 9,411 ft.[2] Scapegoat Mountain is the second-highest and Pentagon Mountain is ninth-highest.
Based on the Köppen climate classification, Flathead Range is located in a subarctic climate zone with long, cold, snowy winters, and cool to warm summers.[3] Temperatures can drop below −10 °F with wind chill factors below −30 °F.