ISBN 9781946142085 books & textbook
Porcupine Mountains Wilderness State Park: A Backcountry Guide for Hikers, Backpackers, Campers & Winter Visitors
Jim DuFresne Jim DuFresne Bryan Byrnes
MichiganTrailMaps.com /2022-06-01 Paperback / 176 Pages
isbn-10: 1946142085 / isbn-13: 9781946142085