Bicycling
Park management does not encourage bicycling in the park. It considers the vast majority of the park's roads "unimproved" and unsafe for bicyclists. A brochure titled "Bicycling in Yellowstone National Park" is available at some visitor centers, but is not widely promoted or disseminated. The park website's Bicycling page (www.nps.gov/yell/planyourvisit/bicycling.htm) also has information about routes, safety gear, and precautions cyclists should take.
Despite park caveats, heavy traffic, and narrow roads, many long-distance cyclists do ride in Yellowstone. If you choose to ride the Grand Loop Road or entrance roads, be safe, ride single file, and wear a helmet and reflective gear. Be cautious in May and June, as high snow banks can make riding the park's narrow roads particularly dangerous. Remember that some routes, such as those over Craig Pass, Sylvan Pass, and Dunraven Pass, are especially challenging because of their steep climbs.
