Beginning today, bicyclists willing to brave the unpredictable elements of spring in Yellowstone National Park can ride the 49 miles between the West Entrance and Mammoth Hot Springs. The sections of the Grand Loop Road open to bicycles include West Entrance to Madison Junction, Madison Junction to Norris Junction, and Norris Junction to Mammoth Hot Springs.
As conditions allow, bicycles will also be permitted from the East Entrance to the east end of Sylvan Pass.
Cyclists can check the Spring and Fall Bicycling web page for road status. Meanwhile, bikes are not allowed on the remaining
Interior park roads until they start to open to public automobile access at 8:00 am Friday April 15th. Cyclists should ride during daylight hours only, anticipate encountering bears, bison, elk, wolves and other wildlife, stay at least 100 yards from bears and wolves and 25 yards from all other wildlife, and prepare to wait or turn around if bison or other wildlife are on the road. Finally, always carry bear spray and know how to use it.