Jeffrey Perls is an environmentalist and outdoor enthusiast who has been exploring the Shawangunk region for more than 14 years. He has been a trail maintainer in Minnewaska State Park and has led numerous outings in the Shawangunks. He has served in various capacities on the board of the Mid-Hudson Sierra Club and has been active in efforts to protect Shawangunk lands. He is also the author of Paths along the Hudson: A Guide to Hiking and Biking. Perls lives in New Paltz, New York.