Tajuña and 40 Days Train Greenway Loop

Based on the tour data, it typically takes around 2 hours and 52 minutes to complete the 33.2-kilometer route. This is an estimated duration for mountain biking, and your actual time may vary depending on your pace and stops.

The terrain is quite varied. The Vía Verde del Tajuña section is largely asphalted but also includes compacted dirt, with some parts having 'dips' and shared traffic. The Senda del Tren de los 40 días features a mix of asphalt and artificial gravel, including steep ramps (one 200-meter stretch at 7% gradient) and segments with 'balasto' (railway ballast) which can be challenging. Some technical sections may require dismounting and pushing your bike.

This route is rated as 'moderate' difficulty for mountain biking. While parts of the Vía Verde del Tajuña are accessible, the Senda del Tren de los 40 días includes steep ramps and sections with railway ballast that can be challenging. Beginners should be prepared for some technical sections and potential bike pushing.

You'll encounter a rich mix of history and nature. Highlights include the historic Goyeneche Palace of Nuevo Baztán, the impressive trenches of the Trail of the 40 Days Train, and remnants of old railway stations. Natural features include gypsum walls, old water mills, riverside forests, olive groves, and farmlands. You can also enjoy a View of Ambite, and pass by natural monuments like Fuente del Arca and Encina de la Pica.

While specific parking areas are not detailed, you can typically find parking in the towns of Villar del Olmo or Nuevo Baztán, which serve as good starting points for this circular route. Consider starting in Nuevo Baztán to explore the Goyeneche Palace before or after your ride.

The trail can be enjoyed for much of the year. Spring and autumn generally offer the most pleasant temperatures for mountain biking. Summers can be hot, especially in the more exposed sections of the Senda del Tren de los 40 días, so early morning rides are advisable. Winter riding is possible, but be prepared for cooler temperatures and potentially muddy sections after rain.

Generally, dogs are allowed on greenways and rural trails in Spain, but it's always recommended to keep them on a leash, especially when passing through towns, agricultural areas, or near wildlife. Please ensure you clean up after your pet.

No, you do not need any special permits or have to pay entrance fees to mountain bike this route. Greenways like the Vía Verde del Tajuña and the Senda del Tren de los 40 días are generally free and open to the public.

Yes, this circular route seamlessly connects the Vía Verde del Tajuña and the Senda del Tren de los 40 días in Carabaña. The Vía Verde del Tajuña is also part of a larger project, the EuroVelo 16 (Iberian Route), with integration into the European Cycle Route Network planned for 2028. Additionally, the route passes through sections of the Ruta Verde 3.3 Vía Verde del Tajuña and Senda de Valmores.

Yes, the towns of Villar del Olmo and Nuevo Baztán, which are part of the route, offer amenities such as cafes, restaurants, and potentially accommodation options. It's a good idea to check opening hours, especially if you're riding during off-peak seasons.

The Senda del Tren de los 40 días, also known as Vía Negrín, has a fascinating history from the Spanish Civil War. It was purportedly built in just 40 days (though it took about 100 days to become operational) to supply besieged Madrid. Along this section, you can still observe vestiges of the Civil War, including trenches and old railway infrastructure, offering a unique historical perspective.