Belknap's Grand Canyon Guide

This mile-by-mile color Waterproof Guide to the Colorado River through Grand Canyon features shaded relief/topographic maps, and special sections on history, archaeology, geology, natural history and photography. Updated yearly with campsites and new USGS Mileage Points: Geology section features step-by-step easy to understand description of how the Canyon was formed as well as color photos from river level with formations clearly labeled for easy identification.