The road linking Canyon, Fishing Bridge and the East Entrance opens on Friday, May 1. Travel from the South Entrance to Grant, West Thumb and Fishing Bridge is set to begin Friday, May 8, with travel from West Thumb over Craig Pass to Old Faithful expected to begin shortly thereafter, once repairs are completed on the Isa Lake Bridge. Travel from Cooke City over Colter Pass to the Chief Joseph Scenic Highway and the Long Lake gate typically also opens by mid-May. The balance of the Beartooth Highway to Red Lodge, Montana, and the road between Tower Fall and Canyon over Dunraven Pass opens the Friday before the Memorial Day Holiday weekend, weather permitting.
Be warned that even though roads are open, there are very limited services in the Park; practically none at Old Faithful and Canyon, while some facilities are opened at Mammoth. And once you’re there, many popular areas will be closed: Due to the deep snow present in the park’s interior, walking on trails including those along the Canyon Rim, or on boardwalks through thermal areas, will be difficult or impossible for some time.
The park also has several seasonal Bear Management Area closures designed to reduce encounters with bears in areas that have a high density of elk and bison carcasses. Several areas including Midway Geyser Basin and Fountain Paint Pots will remain closed through the Friday of Memorial Day weekend.