Quebrada del Castillo is a desert canyon located within Pan de Azúcar National Park in Chile's Atacama Region, a 438 km² reserve established in 1985 along the Pacific coast. The quebrada — a dry ravine or gully characteristic of the Atacama Desert landscape — cuts through the heart of the park, rising from an elevation of approximately 135 meters (443 ft) at its lower end to around 305 meters (1,001 ft) at its upper reaches. The surrounding terrain is defined by the stark beauty of the coastal Atacama Desert, with endemic cacti, rugged hillsides, and the occasional presence of wildlife such as guanacos. The park's most prominent peak, Cerro Castillo, rises nearby at 271 meters of prominence, lending the quebrada its name. Pan de Azúcar National Park is a protected reserve, and the Quebrada del Castillo trail — a roughly 6 km round-trip route taking approximately 2.5 hours — serves as one of the park's primary inland hiking corridors rather than a recreational fishing destination.