Highlight • Mountain Pass
Road cycling
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Cycling
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Red Mountain Pass is a dramatic mountain pass located in the heart of the San Juan Mountains of western Colorado, United States. Reaching an elevation of 11,018 feet (3,358 meters), it serves as a crucial link on the iconic Million Dollar Highway (U.S. Highway 550) between the historic towns of Ouray to the north and Silverton to the south. This high-altitude passage is renowned for its rugged beauty and the distinctive red-hued peaks that give it its name, a result of rich iron oxide deposits.
Visitors consistently praise the pass for its breathtaking panoramic vistas and towering peaks that define the San Juan Mountains. The dramatic landscapes, often decked in vibrant red and yellow hues, showcase the region's unique mineral deposits and provide an unforgettable backdrop for any journey. The sheer scale of the scenery, with the road carved into near-vertical cliffs, leaves a lasting impression on those who traverse this historic route.
Before embarking on a trip across Red Mountain Pass, it's essential to be prepared for its challenging terrain. The pass features steep 8% grades and winding switchbacks, particularly on the north side approaching Ouray. While the entire road is paved, sections are known for lacking guardrails, and avalanches are frequent in winter, sometimes leading to closures. Drivers should exercise caution, especially during adverse weather conditions, and ensure their vehicle is in good working order for mountain driving.
The best time to visit Red Mountain Pass largely depends on your preferred activities. During dry conditions in spring, summer, and fall, the pass offers an unforgettable driving experience with numerous scenic stopping points for photography and access to popular trails near Red Mountain Pass Colorado. Autumn is particularly spectacular when the aspens turn golden, creating a vibrant display. In winter, the pass transforms into a challenging, snow-covered landscape, appealing to those seeking backcountry winter sports, though weather conditions can be severe.
The experience of traversing Red Mountain Pass is truly unique. As you drive, you'll witness the road blasted into sheer quartzite cliffs hundreds of feet above Red Mountain Creek and the Uncompahgre River. Remnants of the area's rich mining history, including abandoned mines and ghost towns like Ironton, are visible from the highway, offering a glimpse into Colorado's past. Wildlife such as elk, deer, and eagles are often spotted, adding to the natural allure of this "American Alps" region.
Whether you're planning a scenic drive, looking for Red Mountain Pass hiking biking trails, or exploring the region's history, there are many ways to experience this iconic location. You can discover a variety of routes and plan your adventure using komoot, finding options that cater to different skill levels and interests. From challenging ascents to leisurely drives with stunning viewpoints, Red Mountain Pass offers an abundance of outdoor opportunities for every type of explorer.
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November 21, 2023
Cycling

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Nearby routes
Best routes near Red Mountain Pass

2
riders
35.1km
02:26
620m
620m
The Red Mountain Pass — Silverton route offers a truly spectacular touring bicycle experience through the heart of the San Juan Mountains. You'll climb past beautiful aspen groves and spruce forests, eventually reaching high alpine vistas where the striking red-colored mountains dominate the landscape, a testament to the region's rich mineral deposits. This difficult 21.8-mile (35.1 km) journey with 2036 feet (621 metres) of elevation gain will take you around 2 hours and 26 minutes, immersing you in rugged beauty.
Planning your ride requires careful consideration; this is a high-altitude route with significant elevation changes and sustained climbs, especially after Ironton Park. The road, part of the Million Dollar Highway, is known for its narrow lanes and lack of shoulders, so be prepared for vehicle traffic and steep drop-offs. Always carry wet weather gear, as conditions can change rapidly in the mountains.
This segment of US Highway 550 is one of the highest paved passes in the San Juan Mountains, offering a true high alpine experience. The area is rich in history, with remnants of old mining structures visible along the way, adding another layer to the dramatic scenery. It's an advanced touring cycling route best suited for those comfortable with challenging terrain and high-altitude conditions.
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Elevation 3,400 m
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While the pass itself is a scenic drive, it serves as a gateway to several notable trails. Popular options include the Albany Gulch Loop, Gray Copper Trail, and Hayden Trail. These trails offer varying levels of difficulty and provide opportunities to explore the stunning San Juan Mountains on foot.
Yes, there are trails suitable for families and those seeking easier hikes. While specific 'easy' trails might require a short drive from the immediate pass summit, areas around Ouray and Silverton, which flank the pass, offer gentler options. Always check current trail conditions and elevation gains to ensure they match your family's comfort level.
Red Mountain Pass transforms into a challenging, snow-covered landscape in winter. While it appeals to backcountry winter sports enthusiasts, winter hiking can be severe due to heavy snowfall, steep grades, and frequent avalanches. The road itself can close during heavy snowfall. Extreme caution and proper gear are essential for any winter activity in this area.
The pass is known for its treacherous conditions, particularly in winter, due to steep 8% grades and winding switchbacks on the north side towards Ouray. Avalanches are frequent and can block the highway. The road is paved but has sections with no guardrails. Drivers should exercise extreme caution, ensure their vehicle is prepared for mountain driving, and check road conditions before traveling, especially from late fall to late spring.
Parking is available at various scenic pull-offs and trailheads along U.S. Highway 550 near the pass summit. Due to the popularity of the Million Dollar Highway and the surrounding trails, parking areas can fill up quickly, especially during peak summer and fall foliage seasons. Arriving early in the day is recommended to secure a spot.
Many trails in the San Juan National Forest and Uncompahgre National Forest, which surround Red Mountain Pass, are dog-friendly. However, it's always best to check specific trail regulations before heading out, as some wilderness areas or protected sites may have restrictions. Always keep dogs on a leash and practice Leave No Trace principles.
The entire drive along the Million Dollar Highway through Red Mountain Pass offers spectacular views. Notable viewpoints include areas where you can see the distinctive red-hued peaks (Red Mountain 1, 2, and 3) and sections where the road is carved into near-vertical cliffs hundreds of feet above the river. Numerous pull-offs allow for safe stopping and photography.
The area around Red Mountain Pass is rich in wildlife. Visitors often spot elk, deer, and various bird species, including eagles, in the hillsides and skies. Keep an eye out, especially during dawn and dusk, but always maintain a safe distance and never feed wild animals.
While the pass itself is remote, the charming historic towns of Ouray to the north and Silverton to the south offer a range of amenities. Both towns provide options for cafes, pubs, restaurants, and various types of accommodation, from hotels and motels to bed and breakfasts and vacation rentals. Ouray is also known for its hot springs.
Red Mountain Pass reaches an elevation of 11,018 feet (3,358 meters). At this high altitude, visitors, especially those coming from lower elevations, may experience symptoms of altitude sickness. It's advisable to hydrate well, take it easy on your first day, and be aware of symptoms like headaches, dizziness, or nausea. Strenuous activities should be approached cautiously.
Red Mountain Pass is deeply intertwined with Colorado's mining boom. The Red Mountain Mining District, located nearby, experienced a significant silver boom in the late 19th century, leading to the establishment of towns like Red Mountain Town, Ironton, and Guston. The road itself was crucial for transporting ore, and remnants of these old mining operations are still visible from the highway today, offering a glimpse into the region's rich past.