| Baldy Mountain | |
| Elevation Ft: | 9892 |
| Elevation Ref: | [1] |
| Prominence Ft: | 2360 |
| Prominence Ref: | [2] |
| Isolation Mi: | 18.04 |
| Parent Peak: | Mount Jefferson (10,216 ft) |
| Map: | Montana#USA |
| Map Size: | 270 |
| Label Position: | top |
| Country: | United States |
| State: | Idaho / Montana |
| Region: | Clark / Beaverhead |
| Region Type: | County |
| Part Type: | Protected area |
| Part: | Centennial Mountains Wilderness Study Area |
| Range: | Rocky Mountains Bitterroot Range Centennial Mountains[3] |
| Coordinates: | 44.5667°N -111.8693°W |
| Topo: | USGS Slide Mountain |
Baldy Mountain is a 9892adj=midNaNadj=mid mountain summit on the common border shared by Beaverhead County, Montana, and Clark County, Idaho.[1]
Baldy Mountain is the third-highest peak in the Centennial Mountains which are a subrange of the Bitterroot Range.[3] The mountain lies on the Continental Divide and the Idaho–Montana border. It is located south of Red Rock Lakes National Wildlife Refuge on land managed by Centennial Mountains Wilderness Study Area, of which it is the highest point.[2] Precipitation runoff from the mountain's north slope drains to Lower Red Rock Lake and Red Rock River, whereas the south slope drains to Ching Creek in Idaho. Topographic relief is modest as the summit rises approximately 3300abbr=offNaNabbr=off above Lower Red Rock Lake in 3.8miles. This landform's toponym has been officially adopted by the United States Board on Geographic Names.[1]
Based on the Köppen climate classification, Baldy Mountain is located in a subarctic climate zone characterized by long, usually very cold winters, and mild summers.[4] Winter temperatures can drop below −10 °F with wind chill factors below −30 °F.