| Argosy Mountain | |
| Elevation Ft: | 8155 |
| Elevation Ref: | [1] |
| Prominence Ft: | 1395 |
| Isolation Mi: | 4.51 |
| Isolation Ref: | [2] |
| Parent Peak: | Pentagon Mountain (8,873 ft) |
| Location: | Flathead County, Montana, U.S. |
| Map: | Montana#USA |
| Relief: | 1 |
| Label Position: | right |
| Range: | Rocky Mountains Flathead Range |
| Coordinates: | 48.0034°N -113.2398°W |
| Topo: | USGS Gable Peaks |
Argosy Mountain is an 8155abbr=offNaNabbr=off summit located in Flathead County of the U.S. state of Montana.[3]
Argosy Mountain is located in the Flathead Range, a subset of the Rocky Mountains. It is situated in the Great Bear Wilderness, on land managed by Flathead National Forest. Precipitation runoff from the mountain drains north to the Middle Fork Flathead River via Roaring, Argosy, and Dolly Varden creeks. Topographic relief is significant as the summit rises 2350abbr=offNaNabbr=off above Argosy Creek in one mile. The nearest higher neighbor is Trilobite Peak, 4.5miles to the east-southeast. Access to this remote peak is from the nearby Shafer Ranger Station at the Schafer landing strip which was grandfathered with the wilderness designation.
Based on the Köppen climate classification, Argosy Mountain is located in a subarctic climate zone characterized by long, usually very cold winters, and short, cool to mild summers.[4] Winter temperatures can drop below −10 °F with wind chill factors below −30 °F.
Argosy Mountain is composed of sedimentary rock laid down during the Precambrian to Jurassic periods. Formed in shallow seas, this sedimentary rock was initially uplifted beginning 170 million years ago when the Lewis Overthrust fault pushed an enormous slab of precambrian rocks 31NaN1 thick, 50miles wide and 160miles long over younger rock of the cretaceous period.[5]