Posted 12-07-2007: The Seamless site and all other map services are available.
Posted 6-26-2007: We are currently experiencing intermittent problems with downloads requested in BIL format. The problem is being looked into by our staff. Since the problem is intermittent, please try your request again if you experience a problem. A more long-term fix for the BIL format problem is currently in development. We apologize for any inconvenience. Thank you for your patience during this time.
Posted 12-7-2007 The Tiled Downloads will be unavailable on Dec 11 from 6:00am - 4:00pm. We apologize for any inconvenience and appreciate your patience.
The National Land Cover Dataset 2001 (NLCD2001) is now available for all of the conterminous United States for download. The three products available are Land Cover, Tree Canopy, and Imperviousness. Land Cover refers to the classification of the land using the land cover definitions mentioned previously. Imperviousness refers to impenetrable surfaces such as rooftops, roads, or parking lots. Tree canopy refers to a layer or multiple layers of branches and foliage at the top or crown of a forest's trees. Background and technical information for NLCD2001 can be found at http://www.mrlc.gov/mrlc2k_nlcd.asp.
A new area for NED 1/3 Arc Second data has been added to SDDS. The new areas are pieces across the United States. To see what areas are available follow steps listed below.More
USGS is now offering seamless National Elevation Dataset (NED) in 1/9 Arc Second resolution. This NED raster product is produced using Light Detection and Ranging (LIDAR) source data.More
U.S. Department of the Interior |
U.S. Geological Survey
