LINKS: GIS (Geographic Information Systems) & Mapping
USGS EROS Data Center  http://edcwww.cr.usgs.gov
USGS Streamstats - Streamflow and Watershed Information http://water.usgs.gov/osw/streamstats/index.html
Protected Areas Database of the United States http://www.protectedlands.net/
Realtime Landsat satellite imagery: http://earthnow.usgs.gov
TopoZone  http://www.topozone.com
Google Earth  http://earth.google.com/
U.S. data at geodata.gov  http://gos2.geodata.gov/wps/portal/gos
Global Spatial Data Infrastructure Gateway  http://gateway.gsdi.org/weswww/portal/index.html
USGS Geologic Map Database  http://ngmdb.usgs.gov/
GIS Data Depot  http://data.geocomm.com
ESRI data  http://www.esri.com/data/data-maps/overview.html
ArcGIS  http://www.esri.com
Global Mapper  http://www.globalmapper.com
LP360 (LiDAR extension for ArcGIS)  http://www.qcoherent.com/product.htm
GRASS GIS  http://grass.baylor.edu
HEC-GeoRAS  http://www.hec.usace.army.mil/software/hec-ras/hec-georas.html
HEC-GeoHMS  http://www.hec.usace.army.mil/software/hec-geohms/index.html
Federal Information Processing Standards (FIPS) Codes  http://www.census.gov/geo/www/fips/fips.html
PRISM  http://www.ncgc.nrcs.usda.gov/products/datasets/climate
Colorado Decision Support Systems  http://cdss.state.co.us/DNN/GIS/tabid/67/Default.aspx
Wyoming Geographic Information Science Center  http://www.wygisc.uwyo.edu/