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1. Major Rivers: Kenya, 1997

1997. United States. National Imagery and Mapping Agency. This line shapefile depicts the major rivers in Kenya. These data were created by the U.S. National Imagery and Mapping Agency in 1997. This layer ... United States. National Imagery and Mapping Agency.

2. Small Watersheds: Pennsylvania

1997. Environmental Resources Research Institute. Boundaries of 9,895 watersheds in Pennsylvania indicated in the Pennsylvania gazeteer of streams. These boundaries enclose catchment areas for name...

3. Wetlands - Line: Chester County, Pennsylvania

1997. U.S. Fish & Wildlife Service, National Wetlands Inventory. NWI digital data files are records of wetlands location and classification as defined by the U.S. Fish & Wildlife Service. This dataset is a compil...

4. Wetlands - Point: Chester County, Pennsylvania

1997. U.S. Fish & Wildlife Service, National Wetlands Inventory. NWI digital data files are records of wetlands location and classification as defined by the U.S. Fish & Wildlife Service. This dataset is a compil...