USGS data and tools are the digital information in a format suitable for direct input to software that can analyze its meaning in the scientific, engineering, or business context for which the data were collected.
USGS is covered by Clarivate Data Citation Index. USGS is covered by Elsevier DataSearch. USGS science Data Catalog is a member node of DataONE: https://search.dataone.org/#profile/USGS_SDC . Other tools to retrieve USGS Data: The USGS EarthExplorer (EE) for aerial photos, elevation data and satellite products http://earthexplorer.usgs.gov/; USGS Global Visualization Viewer (GloVis) for Landsat missions, ASTER and MODIS data holdings http://glovis.usgs.gov/; LandsatLookViewer http://landsatlook.usgs.gov/