B360 and NCAR Hill Loop

This route is considered moderate for touring cyclists. While the B360 portion is generally family-friendly with moderate elevation gain, the inclusion of the NCAR Hill climb significantly increases the challenge. The NCAR climb features a sustained incline, making it a demanding segment for many riders.

The route offers a diverse mix of surfaces. The B360 trail primarily consists of paved bike paths, but also includes segments on gravel and dirt paths, as well as city streets. The challenging NCAR Hill climb is entirely paved.

The B360 and NCAR Hill Loop typically takes around 1 hour and 49 minutes to complete for touring cyclists, covering a distance of approximately 27.4 kilometers (17 miles).

Key points of interest include the challenging NCAR Hill, known for its panoramic views. You'll also ride along sections of the South Boulder Creek Trail (Gravel) and the paved South Boulder Creek Trail, offering scenic stretches through Boulder's open spaces and neighborhoods.

The B360 section provides an excellent overview of Boulder, winding through diverse neighborhoods, parks, and open spaces with views of the surrounding natural beauty. The NCAR Hill climb is renowned for its breathtaking panoramic vistas of the Flatirons, the expansive landscape, and Bear Peak from the summit.

While the route can be accessed from various points around Boulder, common parking areas include those near the South Boulder Creek Trail or public parking lots within Boulder that offer easy access to the B360 loop. Specific parking details for the NCAR Hill section can be found near the National Center for Atmospheric Research at the top of Table Mesa Drive.

As this route primarily involves cycling on paved paths, gravel sections, and city streets, it's generally suitable for cyclists. If you plan to bring a dog, ensure they are on a leash and that you adhere to all local regulations for pets in Boulder Open Space and Mountain Parks, especially on any shared-use paths.

No, there are no specific permits or entrance fees required to cycle the B360 and NCAR Hill Loop. The route traverses public roads, bike paths, and open space areas managed by Boulder Open Space and Mountain Parks, which are generally free to access for recreational use.

The B360 portion of the route is generally accessible year-round. However, for the most pleasant cycling experience, especially tackling the NCAR Hill climb, spring, summer, and fall offer the best conditions with milder weather and clear roads. Winter cycling is possible but may involve colder temperatures and potential icy patches, particularly on shaded sections or the climb.

Yes, the route incorporates significant portions of the B360 trail and also passes through sections of the South Boulder Creek Trail, Bear Creek Path, and Boulder Creek Path, among others, connecting various parts of Boulder's extensive trail network.

Given the route's length and the challenging NCAR Hill climb, it's advisable to bring plenty of water, snacks, a repair kit for your bike, and appropriate cycling gear. Sun protection is also recommended, especially during warmer months, as parts of the route are exposed.