"Modoc Plateau Region"(PDF). California Wildlife Action Plan. California Department of Fish and Game. 2007. Archived from the original(PDF) on 2009-05-02.
US Geological Survey (30 June 2000). "Shoreline Butte: Ice age Death Valley". Death Valley Geology Field Trip Shoreline Butte. Department of the Interior. Archived from the original on 2015-04-30. Retrieved 2009-09-10.
"Modoc Plateau Region"(PDF). California Wildlife Action Plan. California Department of Fish and Game. 2007. Archived from the original(PDF) on 2009-05-02.
US Geological Survey (30 June 2000). "Shoreline Butte: Ice age Death Valley". Death Valley Geology Field Trip Shoreline Butte. Department of the Interior. Archived from the original on 2015-04-30. Retrieved 2009-09-10.