Sierra de San Pedro Mártir National Park, Mountain national park in northern Baja California, Mexico.
Sierra de San Pedro Mártir National Park covers over 72,900 hectares of pine forest, granite outcrops and peaks across northern Baja California. The highest point, Picacho del Diablo, rises to 3096 meters (10,157 feet), forming the apex of a rugged chain that extends across valleys and high plateaus.
Dominican missionaries founded Mission San Pedro Mártir de Verona in the area during the 18th century. Its ruins remain visible in the southern section, where stone walls stand among the trees.
This region once formed part of the territories known to the Kiliwa, long before authorities declared protection in 1947. Today only a handful of trails wind through the high elevations, where hikers sometimes come across stone remains from an earlier era.
Visitors must register at the entrance station between 7 AM and 8 PM, bringing all necessary supplies with them. No services exist within the boundaries, and only a few roads lead to trailheads in the mountains.
The National Astronomical Observatory operates Mexico's largest optical telescope here, with a diameter of 2.12 meters (6.96 feet). The elevation and clear air create favorable conditions for sky observation, far from city lights.
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