-
Federal
Digital data sets describing population density in the conterminous US 31 recent views
Department of the Interior —
Grid of population density in the conterminous United States at a resolution of one kilometer. The grid was converted from an ASCII file obtained from the Consortium... -
Federal
Location of Septic Sewer Systems in the Pacific Northwest
Department of the Interior —
Septic systems are useful for removing and processing human waste. However, they have the potential of leaking or discharging waste into the nearby system and...