The Berkeley/Penn Urban & Environmental Modeler's Datakit is being made available as part of the URBAN & ENVIRONMENTAL FOOTPRINT 2050 PROJECT at the Institute of Urban and Regional Development (IURD) at the University of California, Berkeley under a grant from the National Science Foundation. It consists of a series of viewable and downloadable ESRI shapefiles and grids describing many of the physical, administrative, transportation, demographic, economic, land use and land cover, and environmental characteristics of the 48 contiguous United States.
Available layers include municipal, county, metropolitan area, state and federal land boundaries, census tract and block boundaries, transportation networks, employment center locations, elevation and landcover data, water and wetlands.
Data are provided free of charge.
They are compiled from federal public domain sources, including the U.S. Geologic Survey, the Census Bureau, the U.S. Department of Transportation, the U.S. Department of Agriculture, the U.S. Department of the Interior, the U.S. Fish and Wildlife Agency, and the U.S. Environmental Protection Agency.