Spark Plug Mountain
| Spark Plug Mountain | |
|---|---|
| East aspect, above Glacier Lake | |
| Highest point | |
| Elevation | 6,320 ft (1,926 m) | 
| Prominence | 440 ft (134 m) | 
| Parent peak | Surprise Mountain (6,330 ft) | 
| Isolation | 1.0 mi (1.6 km) | 
| Coordinates | 47°39′34″N 121°09′23″W / 47.659446°N 121.156376°W | 
| Geography | |
| Country | United States | 
| State | Washington | 
| County | King | 
| Protected area | Alpine Lakes Wilderness | 
| Parent range | North Wenatchee Mountains Cascade Range | 
| Topo map | USGS Scenic | 
| Geology | |
| Rock age | Late Cretaceous | 
| Rock type | Tonalitic pluton | 
| Climbing | |
| Easiest route | scrambling | 
Spark Plug Mountain is a 6,320-foot (1,926-metre) mountain summit located above the western shore of Glacier Lake, in eastern King County of Washington state. It's part of the Wenatchee Mountains, which are a subset of the Cascade Range, and is situated in the Alpine Lakes Wilderness, on land managed by Mount Baker-Snoqualmie National Forest. The nearest higher neighbor is Surprise Mountain, 1.0 mi (1.6 km) to the southeast, and Thunder Mountain is set above the eastern shore of Glacier Lake. The Pacific Crest Trail skirts this lake as it passes between Spark Plug and Thunder. Spark Plug Lake, elevation 5,587-ft, lies immediately below the north aspect of the mountain, and Little Spark Plug is the 6,016-ft peak on the north side of this lake. Precipitation runoff from the mountain drains into Surprise Creek and Deception Creek, both tributaries of the Skykomish River.