The Trail San Silvestre Tembleca is a 10-kilometer mountain race held in Tielmes, Madrid. The course combines dirt tracks and trails, passing through the town center and the northern mountain area. The terrain is a mix of dirt and asphalt. It features a positive elevation gain of 400 meters, with the start and finish lines located in the Plaza de la Constitución. This event is known for its technical and physical demands, offering a challenge for mountain runners in a natural setting near the capital.