ANTARCTICA
SHABA RESERVE, KENYA
YELLOWSTONE N.P., WYOMING
PALOUSE REGION, WASHINGTON
CRATER LAKE N.P., OR
CORKSCREW SWAMP, FL
ANTELOPE VALLEY, CA
VIRGINIA LAKES, CA
JOSHUA TREE N.P., CA
DEATH VALLEY N.P., CA
ANZA BORREGO DESERT S.P., CA
DARIEN N.P., PANAMA