Underfoot: A Geologic Guide to the Appalachian Trail
by V. Collins Chew
Appalachian Trail Conference, 1988
203 pages, paperback
Cover is sunned and edge worn. Text is unmarked. Pages tanned. A crease in the spine.
The story of the billion-year old mountains traversed by the Appalachian Trail, one section at a time. An excellent geologic primer for any AT hiker.