Dan_DC: Tempe, Arizona--Salt River
Dan_DC: Tempe, AZ
Dan_DC: Hoover Dam, Lake Mead
Dan_DC: Hoover Dam, Lake Mead
Dan_DC: Hoover Dam, Ariz. & Nev.
Dan_DC: Hoover Dam, Nevada
Dan_DC: Colorado River
Dan_DC: Imperial County, Calif.
Dan_DC: Hoover Dam
Dan_DC: Dry riverbed (Rillito R.), Tucson
Dan_DC: Colorado River and CAP water
Dan_DC: High water mark, Lake Mead
Dan_DC: Ariz.-Sonora Desert Museum, Tucson
Dan_DC: riparian exhibit, Arizona Sonora Desert Museum
Dan_DC: Tucson
Dan_DC: San Juan River canyon, Utah
Dan_DC: Glen Canyon, Utah
Dan_DC: Agua Caliente Park, Tucson, Ariz.
Dan_DC: Santa Cruz River, Tucson, Ariz.
Dan_DC: High water mark, Lake Mead
Dan_DC: Tumacacori, Ariz.
Dan_DC: Tucson, Ariz.
Dan_DC: Grand Canyon
Dan_DC: Grand Canyon
Dan_DC: Tucson
Dan_DC: Kino Environmental Restoration Project, Tucson, Ariz.
Dan_DC: Colorado River as it flows into the eastern end of Lake Mead
Dan_DC: Flash flood, Rillito River, Tucson, Ariz.
Dan_DC: Santa Cruz River, Tumacácori
Dan_DC: Exurban sprawl