Bustarviejo and Sierra de la Cabrera Loop

The terrain on this trail is quite varied and can be challenging. You'll encounter winding paths through pine forests, areas with abundant rocks and stones, and roots that add to the technical difficulty. Some sections are even described as 'rock garden zones'. The landscape is notably rocky, featuring granite peaks and boulders. You might also ride on dirt roads and firebreaks. Be aware that in autumn and winter, the ground can be wet or icy, increasing the challenge.

The route offers several interesting points. You'll pass by the Viewpoints of Sierra de la Cabrera, offering spectacular panoramic views. Other notable spots include the Puerto del Medio Celemín and the unique Medio Celemín Tunnel. History enthusiasts might appreciate the Visigothic Necropolis Tumba del Moro, the Old Penal Detachment of Bustarviejo, and the Watchtower of the Old Bustarviejo Penal Colony. The Church of the Immaculate Conception, Bustarviejo is also along the way.

While the trail can be ridden year-round, the best times are generally spring and early autumn when the weather is milder and the ground conditions are more predictable. In autumn and winter, the ground can become wet or icy, adding a significant layer of difficulty, especially on technical sections. Summer can be hot, so starting early in the morning is advisable.

The trail starts and ends in Bustarviejo, which is a common access point for mountain biking in the area. You should be able to find parking within the town of Bustarviejo itself, close to the trailhead. Specific parking areas are usually well-marked or can be found near the town center.

Generally, there are no specific permits or entrance fees required for mountain biking on established trails like this one within the Sierra de Guadarrama. However, it's always good practice to check the latest regulations from the regional park authorities, as rules can change. Always stick to marked trails to protect the natural environment.

While many trails in the Sierra de Guadarrama are dog-friendly, it's important to keep your dog on a leash, especially given the presence of wildlife and other trail users. The technical and rocky nature of this particular mountain bike trail might also be challenging for some dogs, so consider your dog's fitness and paw protection.

This trail is rated as moderate and requires good fitness and advanced riding skills. While the broader Bustarviejo area offers trails of varying difficulties, this specific route includes technical sections with rocks, roots, and significant elevation changes. Beginners might find it quite challenging, but experienced riders will enjoy the diverse terrain.

Yes, the trail features several challenging sections. The terrain includes 'rock garden zones' and areas with abundant rocks and roots. Some descents are known for their technicality. For example, the area is known for trails like 'La Tubería' with its water pipe and rock garden, and 'Viaducto' which is a classic technical descent. While this route incorporates parts of the general area, expect similar technical challenges.

Bustarviejo is located approximately 60 km from Madrid. While direct public transport options might be limited, it is generally possible to reach towns in the Sierra de Guadarrama region by bus from Madrid. You would need to check specific bus routes and schedules to Bustarviejo to confirm the best way to access the trailhead without a car.

Yes, this route incorporates sections of several other official trails. You'll find yourself on parts of the "De Valencia a Lisboa (Etapa desde Torrelaguna a Bustarviejo)", the "Camino de Santiago Complutense", and the "Ruta del Granito". Other smaller sections include "Al Mondalindo por La Mina de Plata" and "Sierra de La Cabrera", among others.

Given the trail's moderate difficulty and varied terrain, it's essential to bring appropriate gear. This includes a well-maintained mountain bike, a helmet, gloves, and protective eyewear. Carry plenty of water, snacks, a repair kit (spare tube, pump, multi-tool), and a first-aid kit. Depending on the season, layers of clothing are recommended, and consider knee/elbow pads for the technical sections.