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Region
- CaliforniaBig Sur Coast National Scenic Area2
- FloridaBiscayne Aquifer2
- Great Plains2
- AlaskaAnchorage1
- AlaskaGlacier Bay National Park and Preserve1
- Bighorn Basin (Mont. and Wyo.)1
- CaliforniaAlameda County1
- CaliforniaBodie Hills1
- CaliforniaCentral Valley1
- CaliforniaContra Costa County1
- CaliforniaKings Canyon National Park1
- CaliforniaSalinas River Valley1
- CaliforniaSan Francisco Bay Area1
- CaliforniaSequoia National Forest1
- CaliforniaSonoma County1
- East Asia1
- Ellsworth Air Force Base (S.D.)1
- Gulf Coast (La.)1
- HaitiPort-au-Prince1
- Hawaii1