Welcome to the Chaco Alliance

The Chaco Alliance is a grass roots citizen's group dedicated to protecting and preserving Chaco Culture National Historical Park. We formed in early 2006 in response to citizen concerns over the paving (chip-sealing) of CR7950, the main access road to Chaco Culture National Historical Park (CCNHP).

The Chaco Alliance organized the initial meeting with the New Mexico office of the Federal Highway Administration in August of 2006 in which we demanded that NEPA (the National Environmental Policy Act) be applied to all work on CR7950 (Chaco road) because of the significant impacts to the park brought about by increased visitation from paving. When the NEPA process began on CR7950, we were given consulting party status under Section 106 of the National Historic Preservation Act (NHPA).

Our role expanded as additional threats to CCNHP developed from energy exploration in the Chaco area, and we were given consulting party status under Section 106 of NHPA in negotiations with the BLM regarding oil and gas leasing near Chaco. In 2009, over 10,000 acres near Chaco were protected from oil and gas leasing thanks to the efforts of the Chaco Alliance, the Hopi, the San Juan Citizens Alliance, and the National Trust for Historic Preservation. We continue to consult with the Hopi Tribe and the San Juan Citizens Alliance in actions aimed at establishing a protective zone around Chaco.

Chaco Culture National Historic Park

An Ancient World

Chaco Culture NHP in North-Central New Mexico is a very special place. It was inhabited for many hundreds of years and its culture peaked a millennium ago — before that of the more widely known Mesa Verde site.

Chaco at Sunset

Chaco at sunset from NPS housing.


Rock art on the Peñasco Blanco trail. Peñasco Blanco is an unexcavated great house.

Fajada Butte

Fajada Butte, home of the Sun Dagger site.

Bis sa'ani

Navajo for "clay in place", Bis sa'ani is a 35-room ancestral Puebloan great house and archeological site located 8 miles from Pueblo Bonito.

The Road to Chaco

All the road needs is routine maintenance.

Save Chaco

We don't need more fossil fuels


Contact Information

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Anson Wright

Coordinator of the Chaco Alliance since 2006


+1 (503) 709-0038