Bicyclists willing to brave the often unpredictable elements of spring in Yellowstone National Park are now able to travel 49 miles of park roads from the West Entrance at West Yellowstone, Montana, to Mammoth Hot Springs. There is no spring bicycle-only access toward Old Faithful or Canyon during this time. Meanwhile plowing crews continue to clear snow and ice from the roadway in preparation for opening the route to automobile traffic on April 26. Park officials advise that a bicycle trip into Yellowstone this time of year is not to be undertaken lightly. The quickly changing weather can be challenging, and snow and ice may still cover sections of road. Bears, bison, elk, wolves and other wildlife could be encountered at any time, and cyclists should carry bear spray. Furthermore, no services are available along these sections of road, so cyclists will need to be self-sufficient. Cyclists should also expect to encounter and yield to snowplows or other vehicles operated by park employees or construction workers traveling in conjunction with park operations.