Cyclists are able to travel 49 miles of park roads from the West Entrance at West Yellowstone, Montana, to Mammoth Hot Springs. There is no bicycle access to Old Faithful or Canyon until the first interior park roads open to public motorized vehicle access on Friday, April 15. No services are available along these sections of road. Cell phone coverage throughout the park is sparse and unreliable. Cyclists can call 307-344-2109 from 8:00 a.m. to 4:30 p.m. on weekdays for updated road access information, or call 307-344-2113 for 24-hour weather information.
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