Nature, Catalina, 50-Year and Bridle Trail Loop

While Komoot rates this loop as 'easy' overall, the combined route presents a mix of challenges. The Bridle Trail is largely doubletrack and less technical, but sections of the 50-Year Trail, especially the 'upper' parts, are known for being significantly more technical with rock slabs, drops, and challenging slickrock. The Nature Trail also has a steep initial incline and rugged sections. It's best suited for intermediate to advanced mountain bikers seeking a varied experience.

You'll encounter a diverse range of terrain. Expect moderately rocky, predominantly uphill sections, transitioning to less technical stretches. The 50-Year Trail features standard rocky Sonoran Desert terrain, while its upper parts are famous for technical rock slabs and punchy obstacles. The Bridle Trail is typically sandy doubletrack with a compacted tread. The Nature Trail offers a rugged natural surface with rock erosion-control features and rock outcrops. Overall, it's a mix of smooth singletrack, sandy doubletrack, and highly technical rocky sections.

The loop offers spectacular views of the Catalina Mountains and the surrounding Sonoran Desert. You'll ride through landscapes dotted with iconic saguaros and unique rock formations. From various points, you can enjoy panoramic vistas of Oro Valley and Pusch Ridge. The lower portions of the 50-Year Trail showcase gorgeous Sonoran Desert scenery, evolving into high desert views as you ascend.

The loop is primarily accessed via Catalina State Park. You can find parking within the park itself. Be aware that there is an entrance fee to the park, which covers parking.

Yes, as this loop is located within Catalina State Park, there is an entrance fee required per vehicle. This fee grants you access to the park and its trails. No additional permits are typically needed for mountain biking.

Dogs are generally allowed on trails within Catalina State Park, including this loop, but they must be kept on a leash at all times. Always ensure your dog is well-behaved and that you clean up after them to preserve the natural environment.

The best time to mountain bike this loop is typically during the cooler months, from late fall through spring (October to April). Summers in Tucson can be extremely hot, making riding uncomfortable and potentially dangerous due to high temperatures and sun exposure. Winter offers pleasant temperatures, though occasional cold snaps can occur.

Yes, this route incorporates sections of several official trails. You'll ride along parts of the 50-Year Trail, the Bridle Trail, and the Sutherland Trail. There are also sections referred to as 'Trail Link' that connect these main paths, allowing for various route combinations within the Catalina State Park network.

The 50-Year Trail is considered one of the 'OG' and legendary mountain bike trails in the Tucson area. It's highly notable for its variety and challenge, particularly the upper sections which are famous for unique rock slab riding and technical rock features that provide a significant test of skill for mountain bikers.

Be prepared for the 'rude' climbing and technical rock features, especially on the upper 50-Year Trail sections. While the Bridle Trail offers a relatively easier connector, the Nature Trail's initial steepness and ruggedness can be challenging. Cyclists are allowed on the Nature Trail but must yield to hikers. Given the varied terrain, a full-suspension mountain bike is recommended for comfort and control, especially on the technical sections.

Komoot estimates the mountain biking duration for this 14.8 km (9.2 miles) loop to be around 1 hour and 27 minutes. However, your actual time may vary depending on your skill level, the technical sections of the 50-Year Trail, and how often you stop to enjoy the views or navigate obstacles.