Lemei Rock
| Lemei Rock | |
|---|---|
Lemei Rock in the Indian Heaven volcanic field
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| Highest point | |
| Elevation | 5,925 ft (1,806 m) |
| Prominence | 2405 ft (733 m) |
| Coordinates | 46°1′6″N 121°45′36″W / 46.01833°N 121.76000°WCoordinates: 46°1′6″N 121°45′36″W / 46.01833°N 121.76000°W |
| Geography | |
| Location | Skamania County, Washington, U.S. |
| Parent range | Cascade Range |
| Topo map | Lone Butte O46121a7 1:24,000 |
| Geology | |
| Age of rock | and Holocene |
| Mountain type | shield volcano |
| Volcanic arc | Cascade Volcanic Arc |
| Last eruption | 8,200 years ago |
| Climbing | |
| Easiest route | Lemei Trail, Indian Heaven Trail, with rock scrambling |
Lemei Rock is a shield volcano, and part of the Indian Heavenpolygenetic volcanic field in Washington, United States. It is located midway between Mount St. Helens and Mount Adams, and dates from the and Holocene. Lemei Rock is the highest point at 5,925 feet (1,806 m).
Lemei Rock is the highest peak the Indian Heaven Wilderness in Washington and the Cascade Range. Lemei Rock has a topographic prominence of 2405 ft (733 m). On clear days hikers can see views of four nearby volcanoes: Mount Adams, Mount Hood, Mount St. Helens, and Mount Rainier. The shield volcano is topped by a volcanic crater. While the crater rim is free of snow and ice, snow tends to linger on the summit well into July. A small crater lake by the name of Lake Wapiki, occupies the crater below the Lemei Rock high point. The Lost and Dry Creeks flow off of the southeast side of Lemei Rock and join the White Salmon River, while the Smokey, Little Goose, and Cultus flow from the east and northeast side, and joins Trout Lake Creek, which then discharges into the White Salmon River at Trout Lake. The Rush Creek flows from the west side of Lemei Rock and joins the Lewis River between the Lower Lewis River Falls Recreation Area and the Swift Reservoir.
Lemei Rock is one of the many shield volcanoes topped by cinder cones and spatter cones that make up the Indian Heaven Volcanic Field. About 60 eruptive centers lie on the 19-mile (30 km) long, N10°E-trending, Indian Heaven fissure zone. The 230 square miles (600 km2) field has a volume of about 20 cubic miles (100 km3) and forms the western part of a 770-square-mile (2,000 km2) Quaternary basalt field in the southern Washington Cascades, including the King Mountain fissure zone along which Mount Adams was built.
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