Peregrine Falcon in flight, California Prescott AZ (July 16, 2013) — Effective Tuesday, July 16, 2013, climbing and other activities on the cliff face of Thumb Butte will once again be open to the public after closing on February 1, 2013. Community Forest Trust monitoring volunteers identified peregrine falcons nesting sites at both Thumb Butte and Granite Mountain this season. The final results...