Sunday, July 21 at 2 p.m. –Geologist Wayne Ranney explores the relationship between humans and the Grand Canyon. Ranney lived at the bottom of the Grand Canyon for three years before attaining degrees in geology from Northern Arizona University. He has traveled to nearly 90 countries worldwide and has lectured on all seven continents. He has extensive experience in the geological sciences and is an award-winning author of numerous books. Presented with funding from the Friends of the Prescott Public Library.