This 8 ½ X 11 inch atlas depicts 86 USGS quadrangles in and around Bitterroot National Forest at 63,360 scale, so 1 inch represents 1 mile. All maps were revised in accordance with aerial photographs taken in 1995. Land ownership is color-coded to reflect private and public holdings. A contour interval of 100 feet appears on every map, UTM tick marks are spaced at 1,000 meter intervals, and all maps are cast on the NAD83 horizontal datum. A lookup chart at the beginning and end of the atlas provides an overview of the 86 quadrangle locations. The Nez Perce and Lewis & Clark Historical Trails are shown, as well as recreational landmarks such as trailheads, ranger stations, restroom facilities, and points-of-interest. This atlas is a compact, durable reference guide for the outdoor recreationist.