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You searched for: Subject Elevation Remove constraint Subject: Elevation Collection Pennsylvania Spatial Data Access (PASDA) Remove constraint Collection: Pennsylvania Spatial Data Access (PASDA) Year 1999 Remove constraint Year: 1999
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1. National Elevation Dataset 10 Meter 7.5x7.5 minute quadrangle for Pennsylvania

1999. The U.S. Geological Survey has developed a National Elevation Database (NED).The NED is a seamless mosaic of best-available elevation data. The 7.5...

2. National Elevation Dataset 30m County Mosaics for Pennsylvania

1999. U.S. Geological Survey (USGS), EROS Data Center. The U.S. Geological Survey has developed a National Elevation Dataset (NED). The NED is a seamless mosaic of best-available elevation data. The 7.5...