Bustarviejo offers historical mining and penal sites in Sierra de Madrid

Bustarviejo, located in the Sierra de Madrid, serves as a significant destination for those interested in industrial archaeology and historical memory. The municipality features the Destacamento Penal, a former forced labor camp where Republican prisoners constructed the Madrid-Burgos railway viaduct. The site has been preserved to maintain the historical memory of the post-war era.

Additionally, the area is known for its mining history, specifically the Torre de la Mina. This stone structure is a remnant of former arsenic and silver mining operations that were once of global importance. The site offers hiking routes that allow visitors to explore the intersection of the natural landscape and the region's industrial past.