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National Weather Service GIS Data Portal
NOAA weather and atmosphere information; many of the National Weather Service data sets are available in formats that are able to be imported directly into Geographic... -
Pennsylvania Spatial Data: Allegheny County - Soils
From the site: "Data was created to portray the soils in Allegheny County." -
New York State GIS Clearinghouse
Collection of links to various forms of spatial data for New York State and other areas; includes Digital Elevation Models, Digital Line Graphs, Geologic Maps, water/hydrology...