Are you staying in Flagstaff and heading to the South Rim of the Grand Canyon? If so, this field trip guide will be of interest to you and will make your trip more enjoyable and educational!
Ten years ago, in 2014, I co-led a field expedition sponsored by the Society of Engineering Geologists and the Arizona Geological Survey. As part of the field expedition, I helped create a road log that recorded the geology of the 110-mile route, mile by mile. The field expedition guide can be accessed here. You may need to be an academia.edu subscriber to access the field expedition guide. Happy traveling!