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1. Census Hydrographic Features, 2000 - San Francisco Bay Area, California

2000. California. Metropolitan Transportation Commission. This polygon shapefile displays the hydrographic features throughout the San Francisco Bay Area of California. This category includes shorelines of... California. Metropolitan Transportation Commission.

2. National Flood Hazard Layer: Pike County, Pennsylvania

2000. The National Flood Hazard Layer (NFHL) data incorporates all Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Managemen...

3. Riparian Buffers for Southeast Pennsylvania

2000. Heritage Conservancy. During 2000 - 2004, the Pennsylvania Department of Environmental Protection (PA DEP), as part of the Coastal Zone Management (CZM) Program and Penn...

4. Rivers Conservation Plans for Pennsylvania

2000. Contains multiple Rivers Conservation Plans for Pennsylvania. Each folder inculdes various files with data about that particular river study area.

5. Watersheds: Allegheny County, Pennsylvania

2000. Allegheny County Division of Computer Services Geographic Information Systems Group. Polygons marking borders of watersheds in Allegheny county.