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Spatial Coverage
- Alabama3
- Alaska3
- Florida2
- Seldovia2
- Arizona1
- Beaver River1
- Beaver River (Okla.)1
- Boston Metropolitan Area1
- Bullock County1
- Butte1
- Butte (Mont.)1
- Colorado, North Central1
- Culpeper Basin (Va. and Md.)1
- Cumberland County1
- Fairbanks1
- Fairbanks (Alaska)1
- Floridan Aquifer1
- France1
- Gulf Coast (U.S.)1
- Humboldt River Watershed1
