The River Mountains Loop Trail runs approximately 35 miles on a loop which connect Lake Mead National Recreation Area, Hoover Dam, Boulder City, Henderson and Las Vegas. The River Mountians are home to one of the largest big horn sheep populations in Nevada, which you may encounter on this trail. The trail is 12 feet wide and paved. About 3.5 miles of the trail occupy the old bed of a railroad that once ran from Boulder City to Hoover Dam, supplying materials to build the dam. The River Mountains Loop Trail shares its southern section for a few miles with the Historic Railroad Hiking Trail. The two trails have a common trailhead at the Lake Mead National Recrreation Area visitor center on Lakeshore Road.
