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Region
- Africa, North1
- Alaska1
- Ann, Cape (Mass.)1
- Antarctica1
- ArizonaTohono O'odham Reservation1
- Bennington County (Vt.)1
- Bergen County (N.J.)1
- Berkshire County (Mass.)1
- Black Hills (S.D. and Wyo.)1
- Bronx (New York, N.Y.)1
- California1
- California, Northern1
- CaliforniaMontara Mountain Region1
- CaliforniaPalo Alto1
- CaliforniaRed Bluff Region1
- CaliforniaSan Mateo County3
- CaliforniaSanta Clara County1
- Cascade Range2
- Essex County (Mass.)1
- Eurasia1