Join Friends of the San Pedro River docents for a tour of the Murray Springs mammoth kill site. Discovered by Dr. C. Vance Haynes of the University of Arizona in 1966, it held fossils of mammoth killed by the prehistoric Clovis people, plus projectile points and a bone tool believed to have been used to straighten spear shafts. The walk is easy and under half a mile, with dirt steps into and out of a dry wash. From E. Highway 90/AZ-90 in Sierra Vista, drive north on Moson Rd. for 1.28 miles and turn east. Meet the docent at the gate to the site (search “Murray Springs Clovis Site” on Google Maps). End time is approximate.