The Ruta de Sierra de Castellar de los Bueyes is a 8.1 km looped trail that starts and ends in Horcajo de los Montes, Montes, Spain. Based on our data, the trail is graded as Medium. For information on how we grade trails, please click here. Also, check our latest community posts for trail updates.This trail can be completed in approx 2 hrs 43 mins. Caution is advised on trail times as this depends on multiple variables. For more info, click here.Photo Credit :Waltie