Backcountry Travel for Science
By Communications and Publishing
May 2018 (approx.)
Detailed Description
USGS scientists Kim Besiner, John Solder and Kate Wilkins collect groundwater samples at Grapevine Main Spring.
Scientists traveled to the remote locations along the south rim of the Grand Canyon to assess the potential effects of mining along the Coconino Plateau and groundwater withdrawals associated with increasing populations.
Sources/Usage
Public Domain.