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Cabeza Prieta Natural History Association
Michael Foster Videos



El Pinacate y Gran Desierto de Altar
The Pinacate and the Grand Desert of the Altar are just south of the US-Mexico Border and North of the Sea of Cortez.

The Elephant Tree
Elephant trees are uncommon near Ajo but can be found here. Learning to identify this iconic species will enrich a desert hike.

The Largest Cactus in the World
This video focuses on the Cardon cactus (Pachycereus pringlei) but does survey the other large columnar cacti of the Sonoran Desert

Trincheras Culture
This video is about the Trincheras Culture that inhabited NW Sonora Mexico as well as other areas in Southern Arizona and northern Mexico.

Visitors Center El Pinacate Gran Desierto Altar
If your plans include a trip to the Sea of Cortez in Mexico stop to explore the volcanic region known as El Pinacate. Begin at the new Visitors Center at El Pinacate y Gran Desierto Altar Sonora, Mexico North of Rocky Point.

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Natural History of the Sonoran Desert and Refuge