Green Trails Maps, Chiwaukum Mts 177 Green Trails Mpas - One of the 10 Essentials! Scale: 1:69500 Projection: Lambert Conformal Conic UTM Zone: 10 Datum: NAD27 Sheet Size: 12x18 Inches Features: Alpine Lake Wilderness, Icicle Creek Road Campgrounds, Eightmile Mtn, Snograss Mtn, Grindstone Mountain.