EN
This paper is a photographic summary of a scientific and touristic expedition carried out in May-June 2016 in Arizona State, U.S to know the natural beauties of the different ecosystems in the region, the U.S. National Park Service, and the structure of some National Parks, National Forests, and Wilderness Areas. The photos show some parks and wilderness areas structures, important geological formations, and some of the plants, birds, mammals, and lizards species registered.