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You searched for: Author U.S. Geological Survey in cooperation with the U.S. Environmental Protection Agency Remove constraint Author: U.S. Geological Survey in cooperation with the U.S. Environmental Protection Agency Subject Inland Waters Remove constraint Subject: Inland Waters Collection Pennsylvania Spatial Data Access (PASDA) Remove constraint Collection: Pennsylvania Spatial Data Access (PASDA)
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1. National Hydrography Dataset (NHD) Flowline: Pennsylvania (medium resolution)

1999. U.S. Geological Survey in cooperation with the U.S. Environmental Protection Agency. The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the sream segments or reaches that co...

2. National Hydrography Dataset (NHD) Waterbody: Pennsylvania (medium resolution)

1999. U.S. Geological Survey in cooperation with the U.S. Environmental Protection Agency. The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the sream segments or reaches that co...

3. National Hydrography Dataset (NHD) Watersheds: Pennsylvania (medium resolution)

1999. U.S. Geological Survey in cooperation with the U.S. Environmental Protection Agency. The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the sream segments or reaches that co...