| Dumbell Mountain | |
|---|---|
 Greenwood and Dumbell seen from Cloudy Pass | |
| Highest point | |
| Elevation | 8,416 ft (2,565 m)[1] |
| Prominence | 1,316 ft (401 m)[1] |
| Parent peak | Seven Fingered Jack[1] |
| Isolation | 2.53 mi (4.07 km)[1] |
| Coordinates | 48°10′48″N 120°51′31″W / 48.180099°N 120.85867°W[2] |
| Geography | |
  Dumbell Mountain Location in Washington  Dumbell Mountain Dumbell Mountain (the United States) | |
| Country | United States |
| State | Washington |
| County | Chelan |
| Protected area | Glacier Peak Wilderness[2] |
| Parent range | Entiat Mountains[2] North Cascades Cascade Range |
| Topo map | USGS Holden |
| Geology | |
| Age of rock | Cretaceous |
| Type of rock | Dumbell Mountain plutons[3] gneissic hornblende quartz diorite |
| Climbing | |
| First ascent | 1932 Richard Alt, George Fahey[3] |
| Easiest route | Scrambling[3] |
Dumbell Mountain is an 8,416-foot (2,565-metre) double summit massif located in the Glacier Peak Wilderness of the North Cascades, in Chelan County of Washington state. The Dumbell summit is slightly higher than the northeast subpeak (8,408 ft) which is unofficially called Greenwood Mountain.[2] The nearest higher neighbor is Chiwawa Mountain, 2.4 mi (3.9 km) to the east-southeast. Precipitation runoff from Dumbell Mountain drains into tributaries of the Chelan River and the Wenatchee River. The mountain's descriptive name was applied by Albert Hale Sylvester (1871-1944), pioneer surveyor, explorer, topographer, and forest supervisor in the Cascades.[3]