Full of commentary of his many and varied explorations including maps and photographs, this book is a must for anyone aspiring to hike remote areas of the Grand

Find everything you need to know about the Grand Canyon’s one best hike, from the rim to the river—and back again. The Grand Canyon’s striking geology and

* Part of the popular Hiking Geology series * Appendices cover additional geologic information for the non-geologist * Everything needed to plan the trip, inclu