Smith, Brian J.
Cherkiss, Michael S.
Hart, Kristen M.
Rochford, Michael R.
Selby, Thomas H.
Snow, Ray W.
Mazzotti, Frank J.
Funding for this research was provided by:
National Park Service
U.S. Geological Survey
Article History
Received: 7 December 2015
Accepted: 27 June 2016
First Online: 5 July 2016