Colorado Water Science Center
Questions? Contact: Graham Sexstone
Snowpack-sampling pit near Dunckley Pass, Colo. Note discolored dust layers on left face (April 1, 2009).
Snow-density measurement in snowpack-sampling pit near Dunckley Pass, Colo.
Workers in snowpit near Dunckley Pass, Colo.
All photographs by G. Ingersoll, USGS