Bunsen Peak Loop Bike Trail

NPS / Jacob W. Frank

The Bunsen Peak Loop is a strenuous, ten-mile (16-km) bike trail that circles Bunsen Peak. It begins at the Bunsen Peak trailhead with a mostly flat ride the first few miles and then on the northeast side of Bunsen Peak, the road becomes steep and winding, dropping 960 feet in 2.5 miles (292 m in 4 km) to Glen Creek. It meets the Golden Gate Service Road near the National Park Service garage buildings and heads toward Joffe Lake (1.5 miles 2.41km) and follows the Glen Creek drainage steeply back uphill on a service road until it meets back up with the Grand Loop Road. Most of the trail is a dirt road and mountain bikes are highly recommended.

ALTERNATIVE: Instead of biking this as a loop, the ride from the Bunsen Peak Trailhead to the Osprey Falls Trailhead and back is a relatively gentle ride of 6.5 miles (10.5 km) there and back.

There are no bikes allowed on the trail to Osprey Falls.

Go early as the parking is limited at the Bunsen Peak Trailhead.

CAUTION: Some curves have steep drop-offs. Elevation gain/loss for the trail one way is 1,120 feet (335 m).

Alerts: Be alert for bears: both black and grizzly bears forage in this area. Ride with bear spray, have it accessible, and know how to use it. Bison and elk frequent this trail. Federal regulations require you to stay at least 100 yards (91 m) away from bears and wolves, and at least 25 yards (23 m) away from bison and all other wild animals.

Details

Duration

4-6 Hours

The duration will vary depending on fitness level and length of time spent along the trail. Add more time if hiking to Osprey Falls!

Activity

Mountain Biking

Pets Allowed

No

Activity Fee

No

Entrance fees may apply, see Fees & Passes information.

Location

Yellowstone National Park

Near the North Entrance of Yellowstone National Park

Reservations

No

Season

Summer, Fall

Time of Day

Day

Accessibility Information

This trail follows a mostly flat dirt road for the first three miles when accessed from the Bunsen Peak trailhead. This first section could be accessed as an out-and-back trail with a hand-cycle with mountain bike tires. The second section, from the Osprey Falls Trailhead to the NPS garage is about 2.25 miles (1.4Km) with very steep downhill sections (the elevation drops 950 ft (290m)) and sharp curves that drop off abruptly. The section that climbs from the NPS garage area back to the main road is also very steep, gaining back around 1000 ft (305m). Qualified service dogs are permitted in the backcountry, but travel with dogs in the backcountry is not without risks. Please be aware that having a service animal in the backcountry may put you at increased risk for confrontations with wolves, bears, and other wildlife.

Yellowstone Bike Trail: Bunsen Peak Loop

Bunsen Peak Road Bike Trail

More Information

• 

  Bear Spray

  Read about this highly effective bear deterrent.

• 

  Explore Mammoth Hot Springs

  Learn more about the Mammoth Hot Springs area.

• 

  Mammoth Area Day Hikes

  Discover the amazing hikes in the northern part of Yellowstone National Park.