Description of Green Trails Maps Glacier Peak Green Trails, Inc founded in 1973, publishes over 140 topographic recreation map titles for the most spectacular mountain, beach desert areas North America. Including Washington and Oregon's Cascade Mountains, Washington's Olympic Peninsula, the Spring Mountains of Nevada, The parks of Phoenix and the Sky Islands of Tucson. Green Trails maps show the most current trail, road, and access information to national forests, national parks, state and local parks, and other public lands in the most clear, compact, and convenient format and scale available. Features: Original Issue 1977 Current Issue 2002 Edition 0 Scale 1:69500 Inset Scale NA Projection Lambert Conformal Conic UTM Zone 10 Datum NAD27 Sheet Size 12 x 18 Fold No Features Glacier Peak Wilderness, Suattle Trailhead, Sulphor Creek Campground, Image Lake, Mica Lake