Yellowstone National Park will open 49 miles of road from West Yellowstone to Mammoth Hot Springs to bicyclists on Thursday morning at 8 a.m.

There is no bicycle access to Old Faithful or Canyon until the first interior park roads open to public motorized vehicle travel on April 18.

The National Park Services advises bicyclists that the weather this time of year can be unpredictable. Roads may be snow-covered and icy and may be lined with tall snow banks. Wildlife such as bears, bison, elk and wolves could be encountered at any time. No services are available along these roads.

Bicyclists must ride single-file and follow all other rules of the road. They are strongly encouraged to carry bear spray, should be prepared to turn around and backtrack when encountering wildlife on the road and must stay out of closed areas.

Riders need to have a plan for self rescue or repair and be prepared to be out in severe winter conditions for an extended period of time should they experience a mechanical breakdown, injury or other emergency. Cellphone coverage in the park is sparse and unreliable.

The road from the North Entrance at Gardiner to Cooke City at the park’s Northeast Entrance is open all year to cyclists and automobiles, weather permitting.

Cyclists should call 307–344–2107 from 8 a.m. to 4:30 p.m. on weekdays for updated road access information or 307–344–2113 for 24-hour weather information before any ride in the park.

Additional planning information is available online at

Updated Yellowstone National Park road information is available 24 hours a day by calling 307–344–2117.