The River Mountains Loop Trail is a 35 mile non-motorized bike path that allows you to ride through Henderson, Las Vegas, and Boulder City, Nevada. It's a CHALLENGING path, but moderate to fitness riders will be able to enjoy it. Be on the lookout for winding, hairpin turns, challenging climbs, fast descents and beautiful scenery through Lake Mead National Recreation Area. This trailhead entrance is a popular point to get onto the trail. Park at the very top parking lot along the backside of Railroad Pass Casino. After the ride, you can head into RR Pass Casino for a breakfast or lunch or your favorite beverage.