Description: A point file of cities in PA. This data is provided by GDT. This license provides for the downloading and use of GDT data only to DEP employees for their use in support of DEP. Please see the access and use constraints.
Description: This layer represents the streams/rivers in the NHD that intersect Pennsylvania. The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water bodies. Reaches are also defined on waterbodies and the approximate shorelines of the Great Lakes, the Atlantic and Pacific Oceans and the Gulf of Mexico. The NHD also incorporates the National Spatial Data Infrastructure framework criteria established by the Federal Geographic Data Committee.
Description: This file contains hydrologic unit boundaries and codes (clipped for Pennsylvania and surrounding areas). It was revised for inclusion in the National Atlas of the United States of America, and updated to match the streams file created by the USGS National Mapping Division (NMD) for the National Atlas of the United States of America. This is a revised version of the January 2002 data set.
Copyright Text: Others who have helped with this data set and the metadata include Steve
Denowski, Greg Allord, Curtis Price, Ken Lanfear and David Lorenz, in
addition to other colleagues within the U.S. Geological Survey.