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Park County

Top 14 Mountain Passes in Park County

Best mountain passes in Park County, Colorado, traverse a high-country landscape where the Rocky Mountains meet expansive open spaces. This region encompasses parts of the Pike National Forest and San Isabel National Forest. Many passes hold historical significance, serving as routes for early explorers, miners, and settlers. These mountain passes offer diverse experiences through alpine scenery and forested areas.

Best mountain passes in Park County

  • The most popular mountain passes is Hoosier Pass, a mountain pass that sits on…

Last updated: April 25, 2026

Mount Bross

Highlight • Summit

Mount Bross is a 14,178 foot mountain making up the final peak in the DeCaLiBron loop (when done clockwise). This mountain has lots of mines and mining claims associated with …

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Georgia Pass

Highlight • Mountain Pass

Ute and Arapaho Indian Tribes were among the first known users of Georgia Pass. Following the Louisiana Purchase in 1803, the route became popular among European explorers, prospectors, and trappers. …

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Kenosha Pass

Highlight • Mountain Pass

At an elevation of 10,000 feet, Kenosha Pass offers stunning views of the surrounding mountains. It is also a trailhead for the Colorado Trail, therefore, you will find a trail …

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Hoosier Pass

Highlight • Mountain Pass

Hoosier Pass is a mice mountain climb to begin from Breckenridge. The road has a decent sized shoulder on the way up and you are rewarded with mountain views once …

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Boreas Pass Gravel

Highlight • Mountain Pass

The dirt section of Boreas Pass is my favorite. On 6/14/20 the road was gated, so foot and bike "traffic" only. Really nice railroad grade climb to tree line, past …

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Boreas Pass and Continental Divide

Highlight • Mountain Pass

Iconic pass crossing the Continental Divide at 11482 ft elevation

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French Pass

Highlight • Mountain Pass

French Pass reaches up just over 12,000 feet and offers great views of the surrounding mountains and valleys. The trail to the top starts off on an old service road …

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Weston Pass

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At 11,938 feet, Weston Pass is the high point on the mountain road connecting the towns of Fairplay and Leadville. The road really isn't too rough until the final mile …

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Trout Creek Pass

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Trout Creek Pass sits at an elevation of 9,346 feet and connects the Arkansas River and the Plate River Valleys. The pass was originally used by the Denver, South Park …

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Southern Boreas Pass Road - Railroad grade

Highlight (Segment) • Mountain Pass

Thanks to the former railroads need for gradual ascents the climb to the 3500 m pass is long but easy to pedal on the excellent gravel road.

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Popular around Park County

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Tips from the Community

Caro "Bandit"
November 13, 2024, Kenosha Pass

At an elevation of 10,000 feet, Kenosha Pass offers stunning views of the surrounding mountains. It is also a trailhead for the Colorado Trail, therefore, you will find a trail register here. If you want to grab a bite or charge your devices, this is a good spot to hitch into the town of Jefferson, which is just 4.3 miles south of here.

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Christopher
November 23, 2023, Hoosier Pass

Hoosier Pass is a mice mountain climb to begin from Breckenridge. The road has a decent sized shoulder on the way up and you are rewarded with mountain views once you reach the switchbacks. In the winter they do a good job of clearing the roads, but there is quite a bit of sand.

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Daniel Krueger
November 21, 2023, Kenosha Pass

This trailhead along the Colorado Trail marks the beginning (or end) of Section 6. It is located right at the Kenosha Pass.

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Trout Creek Pass sits at an elevation of 9,346 feet and connects the Arkansas River and the Plate River Valleys. The pass was originally used by the Denver, South Park and Pacific Railroad to connect Denver to Leadville during the silver boom.

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AaronLavanchy
November 17, 2023, Hoosier Pass

Hoosier Pass sits on the Continental Divide at 11,542 feet in elevation and connects the towns of Alma & Breckenridge. It is also the highest point along the TransAmerica bike trail, a 4,200-mile route from Oregon to Virginia.

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Boreas Pass tops out at 11,481 feet and connects Como to Breckenridge. Boareas Pass was the nation's highest narrow-gauge railroad, running from 1872 to 1938. The pass was then converted to an automobile route in 1952.

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Thanks to the former railroads need for gradual ascents the climb to the 3500 m pass is long but easy to pedal on the excellent gravel road.

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AaronLavanchy
November 16, 2023, Hoosier Pass

Hoosier Pass sits on the Continental Divide at 11,542 feet in elevation and connects the towns of Alma & Breckenridge. It is also the highest point along the TransAmerica bike trail, a 4,200-mile route from Oregon to Virginia.

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Frequently Asked Questions

What are some of the most scenic mountain passes in Park County?

Park County offers several mountain passes with stunning views. Kenosha Pass, at 10,000 feet, provides expansive vistas of the surrounding mountains and is known for its vibrant fall foliage. Hoosier Pass, located on the Continental Divide, also offers rewarding mountain views, especially from its switchbacks.

Are there mountain passes in Park County with significant historical importance?

Yes, Park County is rich in historical mountain passes. Georgia Pass was historically used by Ute and Arapaho tribes, and later became a toll road in 1861 for wagons traveling to mining towns. Boreas Pass Gravel served as the nation's highest narrow-gauge railroad from 1872 to 1938 before being converted into an automobile route.

What kind of outdoor activities can I do near the mountain passes in Park County?

The mountain passes in Park County are excellent starting points for various outdoor activities. You can find numerous hiking opportunities, including challenging routes like the DeCaLiBron loop near Mount Bross. For cycling enthusiasts, there are extensive gravel biking routes, such as the Boreas Pass Road, and challenging road cycling routes like the one over Guanella Pass.

Are there any challenging mountain passes for experienced hikers or cyclists?

For those seeking a challenge, Mount Bross, though primarily a summit, offers a challenging high-altitude trek as part of the DeCaLiBron loop. French Pass is also categorized as challenging. Cyclists will find the climb up Hoosier Pass from Breckenridge to be a rewarding challenge with a decent shoulder.

What is the best time of year to visit the mountain passes in Park County?

The best time to visit mountain passes in Park County, Colorado, is typically from late spring through early fall (May to October). During these months, the passes are generally clear of snow, offering optimal conditions for hiking, cycling, and scenic drives. Fall is particularly popular for the vibrant aspen foliage around passes like Kenosha Pass.

Are there any mountain passes in Park County, Wyoming, worth visiting?

Yes, Park County, Wyoming, is home to the renowned Beartooth Pass. Located within the Shoshone National Forest, it's part of the Beartooth Highway, often called 'America's most beautiful highway.' This pass offers breathtaking panoramic views of jagged peaks, alpine lakes, and plateaus, making it a prime destination for scenic drives and motorcycling.

What kind of natural features can I expect to see around Park County's mountain passes?

The mountain passes in Park County traverse diverse natural landscapes. You'll encounter alpine scenery, expansive open spaces, and dense forests, particularly aspen forests around Kenosha Pass. Many passes offer stunning viewpoints of the Rocky Mountains, and you may spot various flora and fauna native to high-altitude environments.

Are there any less crowded mountain passes in Park County?

While specific crowd levels can vary, exploring passes like Weston Pass or Trout Creek Pass might offer a more secluded experience compared to some of the more well-known routes. These passes still provide beautiful scenery and historical interest without the same level of traffic.

What do visitors enjoy most about the mountain passes in Park County?

Visitors frequently appreciate the combination of natural beauty and historical significance. Many enjoy the challenging climbs and rewarding views, especially from passes like Hoosier Pass. The opportunity to explore old railroad grades and mining history, as found on Boreas Pass Gravel, also adds a unique dimension to their experience.

Are there any mountain passes suitable for gravel biking in Park County?

Absolutely. Park County is a fantastic destination for gravel biking. The Boreas Pass Gravel route is particularly popular, offering a scenic ride along a historic railroad grade. You can find more gravel biking routes and tours in the region on our dedicated Gravel biking in Park County guide.

Can I access mountain passes in Park County during winter?

Winter access to mountain passes in Park County can be limited due to heavy snowfall. While main roads like Hoosier Pass are often cleared, many higher-elevation passes and unpaved routes, such as Beartooth Pass in Wyoming, are typically closed seasonally. It's always best to check current conditions before planning a winter visit.

Are there any mountain passes that are part of longer trails, like the Colorado Trail?

Yes, Kenosha Pass serves as a significant trailhead for the Colorado Trail, marking the beginning or end of Section 6. This makes it a popular spot for long-distance hikers and those looking to experience a segment of this iconic trail.

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See even more epic mountain passes by checking out these guides in Park County:

Front RangeWhite River National ForestPike And San Isabel National ForestsSummit CountySawatch RangeSan Juan MountainsSan Juan National ForestGrand Mesa, Uncompahgre And Gunnison National ForestsSan Juan CountySaguache CountyChaffee CountyArapaho And Roosevelt National ForestsGunnison CountyRio Grande National ForestClear Creek CountyPitkin CountyHinsdale CountyLake CountyLarimer CountyMineral CountyGrand CountyLa Plata CountyRoutt CountyEagle County

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