Cerro Colorado is a prominent mountain within Tijuana, Baja California, whose reddish land, height, and central position have made it a long-standing city landmark. Formed by two rises and composed mainly of sedimentary material with volcanic, igneous, and metamorphic rock, it remained sparsely inhabited until urban growth in the 1990s spread around it and onto its slopes. Radio and television stations were installed on the summit in 1999. Despite being surrounded by the metropolis, it still contains an unusual local ecosystem with chaparral, cacti, and wildlife including hares, hawks, and rattlesnakes. In January 2017, it was declared a special conservation area to limit further settlement.