Description of Green Trails Maps Echo Mtn Green Trails, Inc founded in 1973, publishes over 140 topographic recreation map titles for the most spectacular mountain, beach, canyon and urban areas of North America. Green Trails maps show the most current trail, road, and access information in the most clear, compact, and convenient format and scale available. See samples, or read Testimonials about their award winning maps. Features: Original Issue 2004 Current Issue 2004 Edition 0 Scale 1:69500 Inset Scale Projection Lambert Conformal Conic UTM Zone 10 Datum NAD27 Sheet Size 12 x 18 Fold No Features Snow Parks and Campgrounds, McKenzie River