Split Butte Volcano

SUMMARY

Type: tuff cone/pit crater
Activity: extinct
Last Eruption: more than 2,270 yrs B.P.
Rock Type: basalt
Eruptive Volume: ?
Location Map from Xerox PARC
Latitude: 43.00 N
Longitude: 113.30 W

Geologic Background:

Split Butte is a basltic tuff cone which contained a central lava lake within cone's crater. The butte is located about 28 miles west northwest of American Falls, Idaho. The butte was recently (November 2000) added to the Craters of the Moon National Monument.

Historic Activity:

• None

Recent Activity:

• None

Data Sources:

• Volcanoes of North America - Wood & Kienle

ADDITIONAL INFORMATION

• National Park Service information on the geology of Craters of the Moon National Monument
• Bureau of Land Management information on the geology of Craters of the Moon National Monument

Last Update: 1/8/01