APPLIED REMOTE SENSING
GER 5750/6750

Free Data:

Intermountain Region Digital Image Archive Center (IRDIAC) - Free Landsat and Aster data for Intermountain West
Utah Automated Geographic Reference Center (AGRC) - Free GIS and ortho imagery for Utah
University of Maryland Global Land Cover Facility - Worlds largest collection of free imagery
WyomingView - Free imagery for Wyoming
Landsat.org - Landsat imagery sharing facility, some free.
Arizona Regional Image Archive (ARIA)

Other Data Sources: