
The Coconino Board of Supervisors, Coconino Extension Service, and Coconino Natural Resources Conservation District combined resources to eliminate Scotch Thistle on Upper Picture Canyon (above the falls), about 40% of the total thistle in the entire canyon.

The main effort was a Coconino Resource Conservation Corps (CREC) crew, who wailed on those thistles for two full days. AZ Master Naturalists and agency personnel tried to keep up. CREC cleared over 20 acres of Scotch Thistle.
