Mount Adams (Washington)
Mount Adams, known by some Native American tribes as Pahto or Klickitat, is a potentially active stratovolcano in the Cascade Range. Although Adams has not erupted in more than 1,000 years, it is not considered extinct. It is the second-highest mountain in Washington, after Mount Rainier.
| Mount Adams | |
|---|---|
| Pahto Klickitat | |
Mount Adams from the west-northwest | |
| Highest point | |
| Elevation | 12,281 ft (3,743 m) NAVD 88 |
| Prominence | 8,116 ft (2,474 m) |
| Isolation | 46.1 mi (74.2 km) |
| Listing | |
| Coordinates | 46°12′09″N 121°29′27″W |
| Naming | |
| Etymology | John Adams |
| Geography | |
Mount Adams Washington | |
| Location | Yakama Nation / Skamania County, Washington, U.S. |
| Parent range | Cascade Range |
| Topo map | USGS Mount Adams East |
| Geology | |
| Age of rock | Less than 520,000 years |
| Mountain type | Stratovolcano |
| Volcanic arc | Cascade Volcanic Arc |
| Last eruption | 950 CE |
| Climbing | |
| First ascent | 1854 by A.G. Aiken and party |
| Easiest route | South Climb Trail #183 |
Adams, named for President John Adams, is a member of the Cascade Volcanic Arc, and is one of the arc's largest volcanoes, located in a remote wilderness approximately 34 miles (55 km) east of Mount St. Helens. The Mount Adams Wilderness consists of the upper and western part of the volcano's cone. The eastern side of the mountain is designated as part of the territory of the Yakama Nation.
Adams' asymmetrical and broad body rises 1.5 miles (2.4 km) above the Cascade crest. Its nearly flat summit was formed as a result of cone-building eruptions from separated vents. The Pacific Crest Trail traverses the western flank of the mountain.