Search Constraints

Number of results to display per page

Search Results

1. 104 State Water Plan Watersheds: Pennsylvania

1998. Environmental Resources Research Institute. Digitized boundaries of 104 major watersheds defined in the Pennsylvania state water plan. The State Water Plan, originally developed in the 1970s,...

2. Census Block Groups: Philadephia, Pennsylvania

2010. U.S. Department of Commerce, U.S. Census Bureau, Geography Division. The TIGER/Line Files are shapefiles and related database files (.dbf) that are an extract of selected geographic and cartographic information from ...

3. Chesapeake Bay region state boundaries

1996. Penn State ORSER/ERRI. Boundaries for the states in the Chesapeake Bay region.

4. Small Watersheds: Pennsylvania

2014. Environmental Resources Research Institute Eastern Pennsylvania Coalition for Abandoned Mine Reclamation (EPCAMR). Boundaries of 9,895 watersheds in Pennsylvania indicated in the Pennsylvania gazeteer of streams. These boundaries enclose catchment areas for name...

5. 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...