O'ahu, Hawai'i
Hawai'i Volcanoes National Park
Central Oregon, Oregon
Mount Shasta + Medicine Lake Area, California
Warner Mountains + Modoc Plateau, California
Lava Beds National Monument
Deschutes National Forest
Deschutes National Forest
Mt. Adams/Indian Heaven Wilderness/Goat Rocks, Washington
Central Oregon, Oregon
Deschutes National Forest
Southwest Washington/Mount St. Helens, Washington