Backcountry Travel for Science
By Communications and Publishing
May 2018 (approx.)
Detailed Description
A group of USGS and National Park Service scientists above Granite Gorge on route for 56 miles and 20,000 vertical feet along the south rim of the Grand Canyon to collect groundwater samples from three springs.
Scientists in this photo (left to right) are Christina Bryant, Kim Beisner, John Solder and Kate Wilkins.
Sources/Usage
Public Domain.