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United States
Wyoming
Fremont County

Union Pass

Highlight • Mountain Pass

Union Pass

Union Pass is a historic high mountain pass located in western Wyoming, within Fremont County. Situated at an elevation of 2,808 meters (9,212 feet) above sea level, it lies directly on the Continental Divide, serving as a natural boundary between the Gros Ventre mountains to the west and the majestic Wind River Range to the east. This significant mountain pass is also notable for being near a rare triple divide, where water can flow towards the Mississippi, Columbia, or Colorado…

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Bridger-Teton National Forest

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    September 15, 2025

    Union Pass (9,212ft/2,808 m) sits on the Continental Divide where waters may flow toward the Mississippi, Columbia, or Colorado Rivers. For centuries, the pass has served as a critical travel …

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    Elevation 2,800 m

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    Monday 16 March

    1°C

    -16°C

    30 %

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    Max wind speed: 25.0 km/h

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    Location: Fremont County, Wyoming, United States

    Frequently Asked Questions

    What are the most popular trails or routes around Union Pass?

    While the Continental Divide Trail traverses Union Pass, offering rugged backcountry terrain for experienced hikers, the main Union Pass Road itself is a popular scenic drive. For specific hiking routes, exploring options on komoot can help you find trails that match your desired difficulty and length, from family-friendly walks to more demanding treks.

    What is the typical trail difficulty around Union Pass?

    The difficulty varies significantly. The main Union Pass Road is generally considered an easy scenic drive. However, many offshoot trails, particularly those requiring 4x4s, can be very technical and challenging. The Continental Divide Trail, which crosses the pass, offers rugged backcountry terrain suitable for experienced hikers.

    Are there any specific landmarks or viewpoints worth visiting at Union Pass?

    Union Pass itself is a significant landmark, sitting on the Continental Divide and near a rare triple divide. The pass offers extraordinary panoramic views where the Wind River, Gros Ventre, and Absaroka Ranges converge. The Union Pass Meadows are also a notable area, especially for wildlife viewing.

    What are the parking options and is public transport available to Union Pass?

    Parking is generally available along Union Pass Road and at various trailheads. However, specific details on designated parking areas or permits are not widely publicized, so it's advisable to check local Forest Service resources. Public transport to this remote area is not available; visitors typically access the pass by private vehicle.

    Is Union Pass suitable for families with children or dog-friendly?

    Union Pass can be family-friendly for scenic drives and shorter, easier walks. The diverse landscape and wildlife viewing opportunities can be engaging for children. Many trails in the surrounding national forests are dog-friendly, but always ensure your dog is on a leash and you follow Leave No Trace principles, including packing out waste.

    What amenities are available near Union Pass, such as cafes or restaurants?

    Union Pass is a remote area, and there are no cafes or restaurants directly at the pass. The nearest town for amenities is Dubois, Wyoming, which offers basic services, dining options, and supplies. It's essential to plan accordingly and bring all necessary provisions for your visit.

    How long does it typically take to hike the trails at Union Pass?

    Hiking times vary greatly depending on the chosen trail and your pace. Shorter, easier walks near the pass might take an hour or two, while sections of the Continental Divide Trail could involve multi-day treks. It's best to research specific routes to estimate duration.

    What are the typical weather conditions at Union Pass, and what should I bring?

    Weather at 9,212 feet (2,808 meters) can change rapidly. Even in summer, expect cool mornings and evenings, and be prepared for sudden storms, including rain or even snow. Always bring layers of clothing, rain gear, plenty of water, snacks, a map, compass or GPS, and sun protection. Sturdy hiking boots are recommended for trails.

    Is Union Pass accessible during winter, and what activities are possible then?

    Winter access to Union Pass can be challenging due to heavy snow, and Union Pass Road may be closed or require specialized vehicles like snowmobiles. While the main road is typically clear of snow during warmer months, the area becomes a popular destination for snowmobiling and other winter sports for those with appropriate gear and experience.

    What kind of wildlife can I expect to see in the Union Pass area?

    The Union Pass area is rich in diverse wildlife. Visitors frequently spot elk, deer, and moose, especially in the lush Union Pass Meadows during dawn or dusk. American bison are also present in the region. Keep a respectful distance and never feed wild animals.

    Are there any circular routes or loops for hiking at Union Pass?

    While the Continental Divide Trail is a linear path, many offshoot trails and forest roads in the surrounding Wind River Range and Shoshone National Forest can be combined to create circular routes. It's recommended to consult detailed topographic maps or local trail guides to plan specific loop hikes.

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