For the more information about the air resources of the National Park Service, please visit http://www.nature.nps.gov/air/.


Arizona

Willcox Playa
Willcox Playa, a National Natural Landmark in Arizona.

There are 10 National Natural Landmark sites located within the state of Arizona. Natural features represented include the largest impact crater in the United States, one of the last permanent stream-bottom habitat areas in southern Arizona, and one of the densest stands of Joshua trees in the US. Nine of the sites received the NNL designation over the course of a decade from 1965 to 1974. Barfoot Park, the 10th and most recent NNL site in the state, was designated in June 2011. Sites range in size from 11 acres to nearly 305,000 acres and are owned by a variety of landowners including U.S. Forest Service, Bureau of Land Management, The Nature Conservancy and private individuals.

Below is a map of sites in Arizona.

National Natural Landmark sites are located in the following counties: Cochise, Coconino, Mohave, Navajo, and Santa Cruz.

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Arizona state map Comb Ridge Barfoot Park Wilcox Playa Ramsey Canyon Canelo Hills Cienega Onyx Cave Barringer Meteor Crater Grapevine Mesa Joshua Trees Kaibab Squirrel Area Patagonia-Sonoita Creek Sanctuary

Please remember, National Natural Landmarks (NNLs) are not national parks. NNL status does not indicate public ownership, and many sites are not open for visitation.

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Last Updated: June 28, 2012