1983 Trails Illustrated map of GUMO with notes from three 1986 backpacking trips. Lower section. February 22, 2020 × 1983 Trails Illustrated map of GUMO with notes from three 1986 backpacking trips. Lower section. 1983 Trails Illustrated map of GUMO with notes from three 1986 backpacking trips. Lower section. Discover more from Phieldnotes Subscribe to get the latest posts sent to your email. Type your email… Subscribe