Fairbanks Geophysical Institute / National Aeronautics and Space Administration / Gas They Pass U.S. Department of the Interior U.S. Geological Survey Fumarole / U.S. Department of the Interior / University of Maryland / Baltimore County / University of Alaska / Fairbanks / /
The Gas They Pass U.S. Department of the Interior U.S. Geological Survey Fumarole on northwest side of Fourpeaked Mountain. Yellow staining on snow is