LandSat7 image of the San Gorgonio Pass area, Riverside County, California.
In the early 1970's, the U.S. Geological Survey (USGS)
entered into a partnership with the National Aeronautic and
Space Administration (NASA) to provide repetitive global
images of the earth's landmasses taken from a satellite
flown at an altitude of approximately 438 miles.  Onboard
the 1999 Landsat7 satellite, the …