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Date: 2000-12-13 10:40:52Schuylkill River Delaware River Brandywine Creek Ridley Creek Christina River Maiden Creek Perkiomen Creek Neshaminy Creek Wissahickon Creek Geography of Pennsylvania Geography of the United States Pennsylvania | WATER RESOURCES DATA - PENNSYLVANIA, Water Resources Data PennsylvaniaAdd to Reading ListSource URL: pa.water.usgs.govDownload Document from Source WebsiteFile Size: 2,13 MBShare Document on Facebook |