Old Fall River Road Introduction: One of the highest elevation trails on our website, topping out at 11,814 feet above sea level, Old Fall River Road is one of our must-ride routes. The one-way uphill route follows Fall River in Rocky Mountain National Park. Opened in 1920, it was the first road in Rocky Mountain National Park to provide car access to the high altitude environment. The road takes you past waterfalls, around switchbacks, past steep drop-offs, through forests and into the tundra above tree line before ending on top of the world. The Fall River Cirque is visible just below the Alpine Visitor Center and frequently has snow well into July. The route gains an astounding 3,293 feet of elevation in just 10.6 miles.