Fremont Pass

This route offers a challenging road cycling experience through a high alpine environment. You'll encounter significant climbs, particularly from Copper Mountain with sustained grades of 7-8%. From Leadville, the climb is initially more gentle (2-3% grades) before steepening. The route transitions from forested areas to high plateaus and historic mining country. While much of the ride is on Highway 91, a fairly wide shoulder is generally present.

The climb is considered hard, requiring very good fitness due to the high altitude (summit at 11,318 feet). From Copper Mountain, expect a climb of 1,500 to 2,000 feet over 6.5 to 11 miles. Starting from Leadville, the climb is described as less daunting, with a more gentle slope for the initial 8 miles before becoming steeper closer to the summit. Be prepared for long climbs and exposure to mountain elements.

You'll experience diverse and captivating scenery, including views of high alpine valleys, the northern Gore Range, and the Tenmile Range. A prominent feature at the summit is the Climax molybdenum mine. You can also catch glimpses of Tenmile Creek cascading over waterfalls. Towards Leadville, you'll see the historic mining town itself and, on clear days from the pass, some of the Sawatch peaks. Don't miss the Fremont Pass Summit and the historic Harrison Avenue (Downtown Leadville).

Parking is available in Leadville, which serves as a common starting point for the route. If starting from the Copper Mountain side, there are parking options there as well. Consider starting in Leadville for a potentially less daunting initial climb.

The best time to cycle is typically during the warmer months when the pass is clear of snow. However, even in summer, be prepared for cold temperatures and potential for altitude sickness due to the high elevation. Weekdays are generally recommended to avoid significant traffic on Highway 91, especially during weekends and holidays.

The Fremont Pass cycling route is located within the San Isabel National Forest. Generally, no specific permits or entrance fees are required for road cycling on public roads like Highway 91 through the pass. However, always check with the local Forest Service office for any current regulations or advisories before your trip.

As this is primarily a road cycling route on Highway 91, it is not typically considered suitable or safe for dogs to accompany cyclists. For dog-friendly options, consider nearby trails that are specifically designed for hiking or mountain biking with pets, adhering to leash laws and waste removal regulations.

Yes, the route also passes through sections of the ADT - Colorado C - Q - Seg 4, Mineral Belt Trail, Forest Service Road 134, Storke Portal Road, and Sangree Hut Trail.

The high altitude (summit at 11,318 feet) is a significant factor. Be prepared for potential altitude sickness and cold temperatures, even in summer. Weather conditions can change rapidly in the mountains, so pack layers and be ready for exposure to mountain elements. Always check the forecast before you go.

Yes, Leadville, known as the highest city in the US, offers various amenities for cyclists. You can find cafes, pubs, and accommodation options in downtown Leadville, particularly around Harrison Avenue. Copper Mountain also has facilities and services.

If you prefer a less daunting initial climb, consider starting your ride from Leadville, where the first 8 miles to the pass have a more gentle average grade of 2-3%. To avoid heavy traffic, especially on Highway 91, planning your ride for a weekday rather than a weekend or holiday is highly recommended.