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Hinsdale County

Top 8 Mountain Passes in Hinsdale County

Best mountain passes in Hinsdale County, Colorado, are characterized by their high-altitude terrain and historical significance. The region features passes that were vital to 19th-century mining operations, offering a glimpse into the area's past. These passes provide access to the San Juan Mountains, with diverse landscapes ranging from alpine views to unique geological formations. The area is known for its challenging off-road routes and scenic paved drives.

Best mountain passes in Hinsdale County

  • The most popular mountain passes is Engineer…

Last updated: May 27, 2026

Spring Creek Pass

Highlight • Mountain Pass

There is a camping area with a picnic table and restrooms at the trailhead. The pass sits at over 10,800 feet and provides access to both the Colorado Trail and …

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Carson Saddle

Highlight • Mountain Pass

Here you will encounter a confluence of different singletrack trails and gravel roads. About a mile up the gravel road to the north is Carson, an old well-preserved ghost town. …

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Cinnamon Pass

Highlight • Mountain Pass

Cinnamon Pass is part of the iconic Alpine Loop. From here, you will enjoy a stunning view over the San Juan Mountains, especially Handies Peak, one of the Colorado 14ers. …

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American Pass

Highlight • Mountain Pass

The climb out of the American Basin up to American Pass is steep and strenuous. Your reward is a great view over Turkey Thief Lake and the surrounding San Juan Mountains including Handies Peak, one of the 14,000ers.

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Slumgullion Pass Climb

Highlight (Segment) • Climb

Climbing Slumgullion Pass northbound on Highway 149 is a journey into the heart of the rugged San Juan Mountains, notorious for its challenging gradients and stunning high-alpine scenery. You'll ascend …

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Engineer Pass

Highlight • Mountain Pass

Engineer Pass sits at 12,800 feet in elevation and is one of the highest roads in Colorado. From the summit, you will enjoy spectacular panoramic views of the San Juan …

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Lake City

Highlight • Settlement

Lake City, Colorado, situated in the San Juan Mountains, is a hub for outdoor activities. The town boasts a range of hiking and biking trails suitable for various skill levels, …

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Colorado Highcountry

Highlight • Trail

This segment from Lake City to Silverton on the Colorado Trail in my mind is the premier segment of the Colorado Trail and Colorado riding in general. It's a long haul at elevation, but the riding and scenery are unrivaled.

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Small saddle

Highlight • Mountain Pass

This is one of a few exposed saddles in the area along the CT/CDT with great views, a steep grade, and a short ascent.

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Tips from the Community

Alex
August 26, 2025, Small saddle

This is one of a few exposed saddles in the area along the CT/CDT with great views, a steep grade, and a short ascent.

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Spring Creek Pass is the access point for hikers of the Colorado Trail/Continental Divide Trail to get into Lake City - unique hiker town. The hitch might not be too easy, but it is worth the wait. The trailhead has plenty of parking and a pit toilet.

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Zachary
July 28, 2025, Carson Saddle

Here you will encounter a confluence of different singletrack trails and gravel roads. About a mile up the gravel road to the north is Carson, an old, well-preserved ghost town. Section 22 of the Colorado Trail runs east, and section 23 heads south. The Continental Divide Trail follows the same route as the CT.

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Climbing Slumgullion Pass northbound on Highway 149 is a journey into the heart of the rugged San Juan Mountains, notorious for its challenging gradients and stunning high-alpine scenery. You'll ascend through beautiful, remote forests for approximately 7-8 miles, gaining over 2,100 ft to reach the lofty 11,530 ft summit. This is a tough climb, averaging a steep 6% or more, but be particularly prepared for its well-known steepness: the hardest mile averages near 9.3%, with sustained pitches that can push 12-14% or even steeper. Enjoy the wild beauty and solitude as you wind your way up this paved scenic byway.

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Caro "Bandit"
February 11, 2024, Cinnamon Pass

Cinnamon Pass is part of the iconic Alpine Loop. From here, you will enjoy a stunning view over the San Juan Mountains, especially Handies Peak, one of the Colorado 14ers. There is some old mining equipment in the area and you can most likely see some deer up here.

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Jamie S.
December 31, 2023, Lake City

Lake City, Colorado, situated in the San Juan Mountains, is a hub for outdoor activities. The town boasts a range of hiking and biking trails suitable for various skill levels, winding through diverse high mountain landscapes; the area offers easy access to alpine lakes, meadows, and towering peaks.

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AaronLavanchy
December 31, 2023, Cinnamon Pass

Cinnamon Pass, located within the San Juan Mountains, stands at an elevation of about 12,640 feet. This high mountain pass offers panoramic views of the surrounding peaks, as well as old mining remnants.

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Caro "Bandit"
December 22, 2023, American Pass

The climb out of the American Basin up to American Pass is steep and strenuous. Your reward is a great view over Turkey Thief Lake and the surrounding San Juan Mountains including Handies Peak, one of the 14,000ers.

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Frequently Asked Questions

What are the driving conditions like on the mountain passes in Hinsdale County?

Driving conditions vary significantly across the passes. Passes like Cinnamon Pass and Engineer Pass, which are part of the Alpine Loop, require high-clearance 4x4 vehicles, with some sections being steep and rocky. In contrast, Slumgullion Pass is continuously paved and accessible by most passenger vehicles, though it features the steepest grade of any continuously paved road in Colorado.

What historical significance do the mountain passes in Hinsdale County hold?

Many passes in Hinsdale County, such as Cinnamon Pass and Engineer Pass, were established as wagon roads during Colorado's 19th-century gold rush. They were crucial for transporting ore and connecting mining towns like Lake City, Silverton, and Ouray. Visitors can still find remnants of old mining operations and ghost towns like Animas Forks, offering a glimpse into the region's rich past.

What unique natural features can I expect to see on these passes?

The passes offer diverse natural wonders. Cinnamon Pass is known for stunning alpine views and wildflowers, especially in areas like American Basin. Slumgullion Pass is famous for the Slumgullion Earthflow, a National Natural Landmark and active landslide that created Lake San Cristobal. Engineer Pass provides panoramic views of surrounding peaks like Uncompahgre and Wetterhorn mountains.

What outdoor activities are available near the mountain passes in Hinsdale County?

The region offers a wide range of outdoor activities. You can find challenging off-road adventures, especially along the Alpine Loop. Hiking is very popular, with trails like the Colorado Trail and Continental Divide Trail accessible from Spring Creek Pass. Nearby Lake San Cristobal, accessible via Slumgullion Pass, is popular for fishing, boating, and camping. For more specific routes, explore the hiking and running trails in Hinsdale County.

When is the best time of year to visit the mountain passes in Hinsdale County?

The best time to visit is typically from late May to November, when most high-altitude passes like Cinnamon Pass are open. Slumgullion Pass, being paved, is generally open year-round with regular snowplowing, but the summer and early fall months offer the most pleasant weather for exploring and enjoying the scenery and activities.

Are there any family-friendly mountain passes or activities in Hinsdale County?

While many passes involve challenging off-road driving, the paved Slumgullion Pass offers an accessible and scenic drive for families. The nearby Lake San Cristobal provides opportunities for fishing, boating, and camping. The town of Lake City itself is considered family-friendly and offers various hiking and biking trails suitable for different skill levels.

Can I expect to see wildlife when visiting the mountain passes?

Yes, the high-elevation areas around the mountain passes offer opportunities to spot alpine wildlife. Visitors to Cinnamon Pass, for example, often report seeing deer. The scenic drives and hiking trails throughout the region provide excellent chances for wildlife viewing.

What is the Alpine Loop and which passes are part of it?

The Alpine Loop is a renowned 65-mile off-road scenic byway that offers extensive backcountry exploration. It primarily connects Lake City, Silverton, and Ouray. Key passes that form a significant portion of this loop include Cinnamon Pass and Engineer Pass. You can find more information about the Alpine Loop on the BLM website or Colorado Department of Transportation website.

Are there camping opportunities near the mountain passes in Hinsdale County?

Yes, there are excellent camping opportunities throughout the region. Spring Creek Pass, for instance, has a camping area with a picnic table and restrooms at the trailhead. Additionally, areas near Slumgullion Pass, particularly around Lake San Cristobal, offer various camping options.

Which mountain passes offer access to major hiking trails?

Spring Creek Pass is a significant access point, providing direct entry to both the Colorado Trail and the Continental Divide Trail. American Pass also offers access to challenging trails with stunning views, including the route to Handies Peak.

Do I need any special permits to access the mountain passes in Hinsdale County?

Generally, no special permits are required for simply driving or hiking on the mountain passes themselves. However, if you plan to camp in designated areas or engage in specific activities, it's always advisable to check with the local land management agencies (such as the US Forest Service or BLM) for any required permits or regulations.

What is the difference between Cinnamon Pass and Engineer Pass?

Both Cinnamon Pass and Engineer Pass are integral parts of the Alpine Loop and offer challenging off-road experiences with historical mining remnants and spectacular views. Cinnamon Pass (12,640 feet) is known for its wildflowers and access to Carson Ghost Town. Engineer Pass (12,800 feet) is slightly higher and offers panoramic views of peaks like Uncompahgre, Coxcomb, and Wetterhorn, with its eastern side generally considered easier to traverse than its western side.

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

Front RangePike And San Isabel National ForestsWhite River National ForestSummit CountySawatch RangeGrand Mesa, Uncompahgre And Gunnison National ForestsSan Juan MountainsSan Juan National ForestPark CountySan Juan CountyArapaho And Roosevelt National ForestsGunnison CountyChaffee CountySaguache CountyClear Creek CountyRio Grande National ForestLarimer CountyPitkin CountyLake CountyGrand CountyMineral CountyLa Plata CountyRoutt CountyEagle County

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