Spatial Coverage
- Alpena (Mich.)1
- Araguaia River Valley1
- Araguaia River Valley (Brazil)1
- Asia1
- Australia1
- Blanc, Mont (France and Italy)1
- Branford1
- Branford (Conn.)1
- British Columbia1
- Bronx (New York)1
- Bronx (New York, N.Y.)1
- Bronx.1
- Calcite (Mich.)1
- Cambridge1
- Cambridge (Mass.)1
- Cambridge.1
- Canada1
- Canada, Eastern1
- Canadian Rockies (B.C. and Alta.)1
- Canon City1
