Blackfoot in Bingham County, Idaho — The American West (Mountains)
East Butte (farthest east) flowed up and cooled quickly about 600,000 years ago, while Big Southern Butte (south of here) emerged about 300,000 years ago. Although East Butte and Middle Butte have a similar appearance, they were formed in differetn ways. A dome of melted rock called rhyolite that rose up through a volcanic fissure became East Butte. Middle Butte, however, is a block of hard lava (basalt) pushed up by volcanic activity from below.
Erected by Idaho Historical Society & Idaho Transportation Department. (Marker Number 428.)
Marker series. This marker is included in the Idaho State Historical Society marker series.
Location. 43° 31.698′ N, 112° 42.836′ W. Marker is in Blackfoot, Idaho, in Bingham County. Marker is at the intersection of U.S. 20 and Twin Buttes Road, on the right when traveling east on U.S. 20. Touch for map. Marker is in this post office area: Blackfoot ID 83221, United States of America.
Other nearby markers. At least 1 other marker is within walking distance of this marker. Big Butte
Also see . . . Big Southern Butte on Wikipedia. (Submitted on May 29, 2017, by Michael Herrick of Southbury, Connecticut.)
Categories. • Natural Features •
Credits. This page was last revised on May 29, 2017. This page originally submitted on May 29, 2017, by Michael Herrick of Southbury, Connecticut. This page has been viewed 107 times since then and 14 times this year. Photos: 1, 2, 3, 4. submitted on May 29, 2017, by Michael Herrick of Southbury, Connecticut.