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Date: 2006-09-19 14:36:48Geography of Pennsylvania Geography of the United States Hydrology Water Allegheny Plateau Wild and Scenic Rivers of the United States Youghiogheny River Monongahela River Stream gauge Streamflow Allegheny River Ohio River | U.S. Department of the Interior U.S. Geological Survey Water Resources Data Pennsylvania Water Year 2005Add to Reading ListSource URL: pa.water.usgs.govDownload Document from Source WebsiteFile Size: 4,62 MBShare Document on Facebook |