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Yellowstone National Park 2018 Spring Bike Opening

National Park Service
U.S. Department of the Interior

Yellowstone National Park
P.O. Box 168
Yellowstone National Park, WY 82190-0168

March 28, 2018              18-013

Morgan Warthin
Phone: 307-344-2015


Spring Bicycling Begins on Select Yellowstone Roads
Bicyclists Must Plan Ahead for Safety

Bicyclists - anticipate hazards and vehicles on the roads.

Mammoth Hot Springs, WY - Beginning Wednesday, March 28, bicyclists willing to brave the unpredictable elements of spring can cycle select roads in Yellowstone National Park. Road segments include Mammoth Hot Springs to Willow Park and the West Entrance to Roaring Mountain. Until conditions improve, it will not be possible to bicycle between Mammoth Hot Springs and the West Entrance because the road construction area (about five miles between Willow Park and Roaring Mountain) is under construction, unpaved, deeply rutted, and muddy.

There is no bicycle access to Old Faithful or Canyon until the first interior park roads open to public motorized vehicle at 8:00 AM on Friday, April 20th, 2018.


As conditions allow, bicycles will be permitted from the East Entrance to the east end of Sylvan Pass, and the South Entrance to West Thumb. Check the Spring and Fall Bicycling web page for the status of the road segments.

There is no bicycle access to Old Faithful or Canyon until those interior park roads open to public motorized vehicle access on Friday, April 20.

A spring bicycle trip into Yellowstone must be taken seriously. Quickly changing weather can be challenging. Roads may close temporarily due to weather conditions. Snow and ice may still cover sections of road. Tall snow banks may line roads and pullouts may be snow packed. Wildlife may be on the roads.

Bicyclists will likely encounter and must yield to snowplows and other motorized vehicles operated by park employees or construction workers readying the park for spring opening. Bicyclists are required to ride single file and follow all other rules of the road.

Bicyclists should prepare to encounter bears, bison, elk, wolves, and other wildlife at any time. It’s illegal to approach wildlife, within any distance that disturbs or displaces the animal. Riders are strongly encouraged to turn around if they encounter wildlife on the road and carry bear spray. Riders must stay out of closed areas.

No services are available along these sections of road. Cell phone coverage throughout the park is sparse and unreliable for communicating emergencies. Riders should plan for self-rescue or repair, and be prepared to spend an extended period of time in winter conditions in the event they experience a mechanical breakdown, injury, or other emergency.

The road from the North Entrance at Gardiner, Montana, to Silver Gate / Cooke City, Montana, at the park's Northeast Entrance is open all year to cyclists and automobiles, weather permitting. Some interior park roads don't open to automobile travel until Memorial Day weekend.

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 before committing to any ride in the park.

Updated Yellowstone National Park road information is available 24 hours a day at: or by calling: 307-344-2117.

Spring Biking Information and Map - NPS Graphic West Yellowstone, Montana Gardiner, Montana Cooke City, Montana Silver Gate, Montana

Cleck here for an Adobe pdf file Spring Biking Flyer.

~ ~ Yellowstone Biking ~ ~

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