Professor Emeritus | Arizona State University
Dr. Jonathan Upchurch is Professor Emeritus, Arizona State University. The Matthes-Evans topographic map combines his interests in both civil engineering and Grand Canyon history. Jonathan had the opportunity to live at the Grand Canyon for six years and, during his lifetime, he has hiked over 2,400 miles in the Grand Canyon. His historical research has been the basis for four presentations at Grand Canyon History Symposiums.