R. Greg Vaughan at Yellowstone National Park
By Earth Resources Observation and Science (EROS) Center
2009 (approx.)
Detailed Description
R. Greg Vaughan of the USGS Astrogeology Science Center does field work at Yellowstone National Park. Vaughan monitors thermal features in his role as the remote sensing lead for the Yellowstone Volcano Observatory. USGS photo
Sources/Usage
Public Domain.