Pinacate Peaks

Overview The Pinacate Peaks are a volcanic mountain complex in northwest Sonora, Mexico, in the Sonoran Desert near the Gulf of California. The area is a protected biosphere reserve and part of a UNESCO World Heritage Site.

What visitors find The landscape is dominated by volcanic landforms - hundreds of cinder cones, maars and lava flows - set beside large desert dunes. The most visited feature is the El Elegante maar, a broad crater about 1.2 kilometers across with a pronounced rim that provides dramatic viewpoints.

Many routes are unpaved and cross raw desert; trails and lookout points concentrate visitor access around key volcanic features and dune margins. Wildlife is typical of the Sonoran Desert and seasonal wildflower displays occur after winter rains.

History The volcanic field formed by eruptions in the late Pleistocene and Holocene, producing the cones, maars and lava sheets visible today. Modern protection began with Mexican conservation designations and culminated in UNESCO inscription in 2013 as part of the El Pinacate and Gran Desierto de Altar Biosphere Reserve.

Location The reserve sits in northwest Sonora near the Gulf of California and close to the U.S. border, accessible from coastal towns such as Puerto Peñasco. The terrain is arid desert punctuated by volcanic highlands and dunes.

• UNESCO designation: The site is part of the El Pinacate and Gran Desierto de Altar Biosphere Reserve and was inscribed as a UNESCO World Heritage Site in 2013.
• Access and conditions: Access is by unpaved desert roads; a high-clearance vehicle or guided tour is strongly recommended and temperatures can be extreme in summer.
• Best viewpoint: The rim of the El Elegante crater offers the most accessible viewpoint and is popular at sunrise and sunset for light and shadow on the crater walls.

What to See #

• El Elegante: A large maar crater formed by explosive volcanic activity; roughly 1.2 kilometers across and about 200 meters deep, with a clear rim that provides the main roadside viewpoint.
• Sierra del Pinacate: The volcanic highland that gives the area its name, consisting of hundreds of cinder cones and lava flows that form the core of the biosphere reserve.
• Gran Desierto: The adjacent sand sea known as the Gran Desierto de Altar, a region of large mobile dunes that meet the volcanic terrain on the western side of the reserve.