Tag: Data

A fine collection of pointers to State Clearinghouse websites developed by the FDGC. Because there are numerous data directories available from a variety…

In order to providethe GISuserwith one-click access to various State GIS and geospatial data repositories and clearinghouses, please consult this current listing of…

USAPhotoMaps is an exceptional, free tool developed and distributed by Doug Cox. Use it to automatically retrieve and display TerraServer aerial photos or…

Are you working with US FWS NWI data? If so then this document explaining the various classification & map codes is a must…

The National Elevation Dataset (NED) is a raster data product assembled by the U.S. Geological Survey (USGS). The NED is designed to provide…

The SRTM data sets result from a collaborative effort by the National Aeronautics and Space Administration (NASA) and the National Imagery and Mapping…

The US Census Bureauhas released the 2003 TIGER/Line files by county or statistically equivalent entity based on the latest available governmental unit boundaries…

Data from chemical analyses of more than 60,000 stream-sediment and soil samples from all 50 States are now available online courtesy of the…

An international team of scientists from NASA and other research institutions has embarked upon a three-week expedition that will take them from the…

Are you searching for standard 7.5 minute USGS DEMs? You may have already discovered that the USGS no longer makes these data available…