East Butte
| East Butte | |
|---|---|
| File:East Butte, nw.jpg West-northwest aspect | |
| Highest point | |
| Elevation | 6,572 ft (2,003 m)[1][2] |
| Prominence | 1,542 ft (470 m)[2] |
| Parent peak | Big Southern Butte (7,550 ft)[3] |
| Isolation | 19.33 mi (31.11 km)[3] |
| Coordinates | Lua error in Module:Coordinates at line 489: attempt to index field 'wikibase' (a nil value).[4] |
| Geography | |
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| |
| Country | United States of America |
| State | Idaho |
| County | Bingham |
| Parent range | Snake River Plain Rocky Mountains[2] |
| Topo map | USGS Little Butte SW |
| Geology | |
| Rock age | 600,000 years old |
| Mountain type | Lava dome |
| Rock type | Rhyolite |
East Butte is a 6,572-foot elevation (2,003 m) summit located in Bingham County, Idaho, United States.
Description
[edit | edit source]East Butte and line parent Big Southern Butte were major landmarks for early explorers and pioneers.[4] The remote mountain is situated over 40 miles east of Craters of the Moon National Monument and Preserve, 32 miles west of the community of Idaho Falls, and can be seen from Highway 20 midway between Idaho Falls and Arco at milepost 274. East Butte is set on land belonging to the Idaho National Laboratory so access is restricted even though a road leads to multiple radio towers at the top. Topographic relief is modest as the summit rises over 1,200 feet (370 meters) above the Eastern Snake River Plain in one mile. This landform's toponym has been officially adopted by the United States Board on Geographic Names.[4]
Geology
[edit | edit source]East Butte is a lava dome composed of aphanitic rhyolite. It formed around 600,000 years ago as sialic magma flowed through a conduit in the basalt plain which surrounds the peak.[5]
Climate
[edit | edit source]East Butte is located in a cold semi-arid climate zone with warm summers and cold winters (Köppen BSk).[6] Winter temperatures can drop below 0 °F with wind chill factors below −20 °F. Precipitation is relatively sparse.
Gallery
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See also
[edit | edit source]- Middle Butte
- List of mountain peaks of Idaho
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References
[edit | edit source]- ^ United States Geological Survey topographical map - Little Butte SW
- ^ a b c Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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- ^ The Land Volcanoes Made: the Buttes of the Snake River Plain from Idaho Falls to Arco, Idaho, railsback.org
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External links
[edit | edit source]- National Geodetic Survey Data Sheet
- East Butte: weather forecast