Mount Whitney to Yosemite: the Geology of the John Muir Trail gives detailed description of over 45 rock units traversed by this incredible 212 mile long trip. The topics covered are advanced, but the in-depth introduction to geology defines the terminology for understanding the processes that formed the Sierra Nevada. The book is illustrated with 135 figures and photographs, and is accompanied by 44 geologic maps showing the trail overlain with UTM coordinate grid. GPS waypoints and trail description makes locating the features discussed straightforward meanwhile coming to terms with the complex geologic history may take a lifetime.