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Spatial Coverage
- Colorado8
- Nevada5
- California4
- United States4
- Animas River Watershed (Colo. and N.M.)2
- Eagle County2
- Lander County2
- Louisiana2
- New Mexico2
- Nye County2
- Silverton Region2
- Africa1
- Alameda County1
- Alaska1
- Albuquerque Region1
- Armenia1
- Black Hills (S.D. and Wyo.)1
- Clear Creek Watershed (Clear Creek County)1
- Crook County1
- Crystal Coast (N.C.)1
