Italy / Mexico / New Zealand / Sudan / Indonesia / Japan / Russia / United States / Canada / United Kingdom / Argentina / Papua New Guinea / Bolivia / Greece / Wales / / /
Organ Mountains / Yellowstone / Questa mountain / Rocky Mountains / Long Valley / San Juan Mountains / Tertiary volcanoes / Andes / Three Creeks / South River / Superstition Mountains / Organ mountain / Cat Mountain / Mount Aetna / Eagle Mountain / Kagoshima Bay / Mt. Aetna / Mauna Loa / Tucson Mountains / Timber Mountain / Pine Canyon / Sierra Nevada / /
Person
Peter W. Lipman / Steven / Santorini / Cunningham / Glen Coe / /
Position
Walker / author / present author / representative / G. P. / /
ProvinceOrState
Texas / Alaska / Wyoming / Nevada / Oregon / Hawaii / New Mexico / Utah / California / Arizona / Colorado / New Hampshire / /
Region
central Italy / eastern California / southern Russia / southwest Japan / southwest Nevada / central Colorado / western U.S. / Central America / northwestern U.S. / southern Rocky Mountains / southwest Texas / central Andes / southern Japan / /