Guanella Pass

Cycling Guanella Pass is considered a challenging ride, particularly from the Georgetown side. You'll gain over 3,600 feet in elevation over approximately 10.8 miles to reach the summit. The average grade is around 5.4%, with sections reaching up to 10.9%. The route from Grant is also substantial, with an average grade of 4.5% over 12.9 miles. Good to very good fitness is recommended for touring cyclists.

The scenery is spectacular. The route follows the South Clear Creek River through a narrow canyon, passing hydroelectric reservoirs and two lakes. As you climb, dense forests give way to high-alpine tundra. At the Guanella Pass Summit, you'll enjoy panoramic views, including Mount Bierstadt. During spring and summer, wildflowers are abundant, and you might spot wildlife like bighorn sheep or moose.

The best time to cycle Guanella Pass is typically from late spring to early fall, after the pass reopens from winter closures (usually around May). During these months, the weather is generally more favorable, and the wildflowers are in bloom. Always check current conditions before heading out, as mountain weather can change rapidly.

You can find parking in the historic town of Georgetown, which serves as a popular starting point for the ascent. Alternatively, parking is available near Grant if you choose to start from the south side of the pass. Specific parking areas are usually well-marked.

No specific permits or entrance fees are generally required to cycle the Guanella Pass Scenic Byway itself. However, as the route passes through the Arapaho and Pike National Forests, standard regulations for national forest lands apply. Always practice Leave No Trace principles.

Yes, dogs are generally allowed on the Guanella Pass Scenic Byway. If you're cycling with your dog, ensure they are well-behaved, on a leash, and that you clean up after them. Be mindful of traffic and other cyclists, and consider the strenuous nature of the climb for your pet.

Yes, while primarily a road cycling route, the area around Guanella Pass is popular for hiking. The route passes through sections that are close to or intersect with trails such as the Rosalie Trail and the Mount Bierstadt Trail.

Yes, the historic town of Georgetown, at the northern end of the pass, offers various amenities including cafes, restaurants, and accommodation options. Grant, at the southern end, also has some basic services. These towns are excellent places to refuel or stay overnight.

Many cyclists prefer starting from Georgetown due to the initial steepness, which then mellows out before a final demanding switchback section. The climb from Grant is also substantial but has a slightly lower average grade. Both offer unique challenges and scenery, so your choice might depend on your preferred climbing style and starting location.

The full ascent of Guanella Pass is quite challenging and generally not recommended for young children or beginner family cyclists due to the significant elevation gain and sustained grades. However, families might enjoy shorter, flatter sections near Georgetown or Grant, or consider other, less strenuous routes in the broader area.

Given the challenging nature and high elevation, bring plenty of water, high-energy snacks, and layers of clothing. Weather can change quickly, so a windbreaker or rain jacket is advisable. Don't forget sun protection, a basic bike repair kit, and a fully charged phone for emergencies.