| Organ Mountain | |
| Elevation Ft: | 13032 |
| Elevation Ref: | [1] |
| Prominence Ft: | 456 |
| Prominence Ref: | [2] |
| Isolation Mi: | 0.36 |
| Parent Peak: | Amherst Mountain (13,165 ft) |
| Country: | United States |
| State: | Colorado |
| Region: | La Plata County |
| Region Type: | County |
| Part Type: | Protected area |
| Part: | Weminuche Wilderness |
| Range: | Rocky Mountains San Juan Mountains Needle Mountains |
| Map: | Colorado#USA |
| Coordinates: | 37.5678°N -107.5537°W |
| Coordinates Ref: | [3] |
| Topo: | USGS Columbine Pass |
| Easiest Route: | scrambling |
Organ Mountain is a 13032feet summit in La Plata County, Colorado, United States.
Organ Mountain is situated in the Needle Mountains which are a subrange of the San Juan Mountains. The mountain is located 30miles northeast of the community of Durango and set within the Weminuche Wilderness on land managed by San Juan National Forest. Precipitation runoff from the mountain's slopes drains to Vallecito Creek which is a tributary of the Los Pinos River. Topographic relief is significant as the summit rises over 4000feet above the creek in 1.5miles. The mountain's toponym has been officially adopted by the United States Board on Geographic Names,[3] and has been recorded in publications since at least 1906.[4]
According to the Köppen climate classification system, Organ Mountain is located in an alpine subarctic climate zone with cold, snowy winters, and cool to warm summers.[5] Due to its altitude, it receives precipitation all year, as snow in winter, and as thunderstorms in summer, with a dry period in late spring.