Starting at Rising Sun and ending just past the tunnel, this is an incredibly scenic ride toward Logan Pass and the continental divide at 2024 m. It is a popular climb frequented by cycle tours during it's limited opening time, less than 4 months of the year. Located in Glacier National Park, Montana USA it has been designated a National Historic Landmark and Historic Civil Engineering Landmark. The ride starts gently, passing St Mary Lake then ramps up to a 6% average grade as it climbs toward Logan Pass.