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Big Southern Butte
The view from the Big Southern Butte illustrates the scope and dimensions of Quaternary volcanism in the western United States. It is the largest area of volcanic rocks of young age in the United States.
Location: Butte County, ID
Year designated: 1976
Please remember, National Natural Landmarks (NNLs) are not national parks. NNL status does not indicate public ownership, and many sites are not open for visitation.
Last Updated: June 28, 2012