Pinnacle Mountain (Washington)
| Pinnacle Mountain | |
|---|---|
Pinnacle Mountain, south aspect | |
| Highest point | |
| Elevation | 8,400 ft (2,560 m) |
| Prominence | 1,744 ft (532 m) |
| Parent peak | Emerald Peak (8,419 ft) |
| Isolation | 1.88 mi (3.03 km) |
| Coordinates | 48°07′55″N 120°40′14″W / 48.132071°N 120.67048°W |
| Geography | |
| Interactive map of Pinnacle Mountain | |
| Country | United States |
| State | Washington |
| County | Chelan |
| Protected area | Glacier Peak Wilderness |
| Parent range | Chelan Mountains North Cascades Cascade Range |
| Topo map | USGS Pinnacle Mountain |
| Geology | |
| Rock type(s) | hornblende quartz diorite, granodiorite |
| Climbing | |
| First ascent | 1948 Dwight Watson, Ken Fleming |
| Easiest route | class 3 scrambling South slopes |
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Pinnacle Mountain is an 8,400-foot (2,560-metre) granitic multi-peak massif located in the Chelan Mountains, in Chelan County of Washington state. The mountain is situated in the Glacier Peak Wilderness of the North Cascades, on land managed by Wenatchee National Forest. Pinnacle Mountain ranks as the fourth-highest peak in the Chelan Mountains, and 77th-highest summit in Washington state. The nearest higher neighbor is Saska Peak, 1.9 mi (3.1 km) to the southeast, and Emerald Peak is positioned 2.25 mi (3.62 km) to the east-southeast. Precipitation runoff from the peak drains into the Entiat River and Chelan River drainage basins.