Base data is the basic land surface data that describes the
lay of the land including major and minor landmarks, natural
and manmade, such as rivers, roads and buildings. It includes
all the features shown on the typical USGS 1:24000 scale topo
map.
U.S. Department of the
Interior, U.S. Geological Survey URL:http://rockyweb.cr.usgs.gov/frontrange/land/basedata/basedata.htm Contact: Carol Mladinich mailto:csmladinich@usgs.gov Updated: 07/28/2000
