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Cabeza Prieta Natural History Association
Ajo, Arizona

Coffee Pot Mountain


Mission Statement

The Cabeza Prieta Natural History Association (CPNHA) is a totally private, non-government, non-profit entity dedicated to enhancing the appreciation and understanding of the Sonoran Desert. Our focus includes the plants, wildlife, geology, climate and even the stars as seen from the desert.

About Our Association

The Cabeza Prieta Natural History Association was started in Ajo, Arizona in 1995 when it sponsored the first of the tours to the top of Childs Mountain during National Wildlife Week. The mission of the Association has always been to promote educational and interpretive activities intended to enhance understanding and appreciation of the natural history of the Sonoran Desert in Southwestern Arizona and to raise concern for the preservation of this unique natural environment.

Since 1996 the Association has sponsored the winter Natural History Lecture Series. These lectures occur every two weeks from January through March. They offer winter visitors and residents a chance to hear experts, some world famous, talk about all aspects of the Sonoran Desert and the region.

The association conducts naturalist led walks to acquaint the local population and visitors with the Sonoran Desert's unique character.

Bi-annually, in March of odd numbered years we host and sponsor the Sonoran Shindig, a day-long event that brings the governmental agencies that control the nearby lands to Ajo where they can display information related to their work and allow attendees to meet their representatives. Other organizations with an interest in the Sonoran Desert participate as well. For many years a photo exhibit of nature photography has been one highlight of the event. In March of even numbered years we support a scientific symposium that is a 4 or 5 day event bringing researchers and students with an interest in the Sonoran Desert to Ajo to share knowledge and research. This large event is a cooperation of many organizations in the tri-national Sonoran region.

Association Bylaws

Executive Board




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Thomas R. Powell


Natural History of the Sonoran Desert and Refuge