The U.S. Geological Survey (USGS) offers certain US GeoData data sets through the Internet. They can be retrieved using the World Wide Web or anonymous File Transfer Protocol (FTP). The data bases and their directory paths are as follows:
* 1:24,000-scale digital line graph data in SDTS format (/pub/data/DLG/24K)
* 1:2,000,000-scale digital line graph data in SDTS format (/pub/data/DLG/2M)
* 1:100,000-scale digital line graph data (/pub/data/DLG/100K)
* 1:100,000-scale land use and land cover data (/pub/data/LULC/100K)
* 1:250,000-scale land use and land cover data (/pub/data/LULC/250K)
* 1-degree digital elevation model data (/pub/data/DEM/250)