National Digital Map earth science/paleoclimate/repository STUDY NOTES: Repository of topographic maps produced by the National Geospatial Program of the USGS. US Topo maps are available for free Web download from the USGS Store. Each map is delivered in PDF format with geospatial extensions and include specific data - orthoimagery, transportation, geographic names, topographic contours, boundaries, hydrography, structures, and woodlands. KEYWORDS: map, topographic, image, maps, United States, analytical, geographic DISCIPLINE KEYWORDS: Geoinformatics, GIS, cartography, geology CONTENT KEYWORDS: data. This resource description was produced with support from the NSF project entitled "EarthCube RCN: C4P: Collaboration and Cyberinfrastructure for Paleogeosciences," (NSF ICER-1340301) under the direction of Kerstin A. Lehnert, Mark Uhen, John W. Williams, Christopher J. Jenkins NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce 2014-09-03 ONLINE Files online, ASCII http://nationalmap.gov/ustopo/ http://nationalmap.gov/ustopo/ http://nationalmap.gov/ustopo/ English http://nationalmap.gov/ustopo/ http://nationalmap.gov/ustopo/