RMNP/Alpine Visitor Center

The best time to cycle this route is generally early summer. Starting early in the day is also recommended to avoid congested roads and afternoon thunderstorms. Be prepared for much colder temperatures and strong winds at the summit, even in summer.

The route typically starts near the western entrance of Rocky Mountain National Park, about 20 minutes from Granby. Parking is available at the park's entrance stations or designated areas within the park. Arriving early, especially in summer, is crucial to secure parking and avoid crowds.

While timed entry permits are not required for visitors entering Rocky Mountain National Park by bicycle, a park entrance fee is still required. You can find current fee information and purchase passes on the official nps.gov website.

No, this route is considered strenuous and requires very good fitness. It involves significant elevation gain, often exceeding 4,000 feet, and is one of the most challenging bike climbs in Colorado. The road is characterized by consistently narrow, steep, and winding sections.

The route primarily follows Trail Ridge Road, the highest continuous paved road in the United States, reaching elevations over 12,000 feet. You'll experience narrow, steep, and winding sections. The terrain transitions from aspen and pine forests to fir and spruce, eventually reaching an alpine tundra environment above the treeline. Road shoulders are narrow, so cyclists must share the road with vehicles.

The route offers breathtaking panoramic views of the Rocky Mountains. You'll pass through diverse landscapes, from meadows and woodlands to alpine tundra. Key highlights include the Rocky Mountain National Park — Grand Lake Entrance Station and the Alpine Visitor Center - Trail Ridge Store itself, which is the highest visitor center in the National Park System. The route also crosses the Continental Divide.

The full route to the Alpine Visitor Center from the Granby area is approximately 118.5 km (73.6 miles) and involves over 1,500 meters (4,900 feet) of elevation gain. It typically takes around 6 hours of active cycling time, but plan for a full day to account for stops, breaks, and enjoying the scenery.

In Rocky Mountain National Park, dogs are generally not permitted on trails. While they may be allowed on roads open to vehicles if leashed, the narrow shoulders and high traffic on Trail Ridge Road make it less suitable for cycling with dogs. It's best to check the official NPS website for the most current pet regulations within the park.

Given the high altitude and rapidly changing weather, you should bring layers of clothing, including warm gear for the summit, rain protection, and strong sun protection. Carry plenty of water and snacks, as services are limited. A well-maintained road bike, repair kit, and emergency supplies are essential. Be prepared for much colder temperatures and potential strong winds at higher elevations.

Yes, while primarily a road cycling route, it does briefly intersect or run parallel to sections of several other paths within Rocky Mountain National Park, including the CDT - Colorado Section, Colorado River Trail, and Ute Trail. However, bicycles are prohibited on park trails, so cyclists must remain on the paved roads.

Yes, e-bikes are allowed on all roads within Rocky Mountain National Park where traditional bicycles are permitted, which includes Trail Ridge Road. They are subject to the same regulations as traditional bicycles.