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Overdraft from the Gila River system prompted the construction of the Central Arizona Project, which delivers some 1,500,000 acre-feet (1.9 km 3) annually from the Colorado River to supplement water supplies in the basin. [17] The upper Gila River, including its entire length within New Mexico, is a free-flowing one.
The Gila River Valley is a multi-sectioned valley of the Gila River, located primarily in Arizona. The Gila River forms in western New Mexico and flows west across southeastern, south-central, and southwestern Arizona; it changes directions as it progresses across the state, and defines specific areas and valleys.
The northern branch tributary to the Gila River in the Gila National Forest, is the San Francisco River. The map highlights the Gila River extending eastward across southern Arizona to the southwestern corner of Arizona and its input into the Colorado River, from its origins about 400 miles east in the southwestern corner of the state of New ...
Gila Wilderness was designated the world's first wilderness area on June 3, 1924. [1] Along with Aldo Leopold Wilderness and Blue Range Wilderness , the 558,014 acre (225,820 ha) (872 sq. mi.) wilderness is part of New Mexico's Gila National Forest .
Gila Box Riparian National Conservation Area is a National Conservation Area located along the Gila River in southern Graham and Greenlee counties in southeastern Arizona in the United States. Administered by the Bureau of Land Management, the conservation area is approximately 23,000 acres (93 km 2) in size. Campgrounds and hiking trails are ...
Map of the Colorado River drainage basin The principal tributaries of the Colorado River of North America are the Gila River , the San Juan River , the Green River , and the Gunnison River . Tributary tree
Southern Arizona is the area of Arizona south of the Gila River, roughly corresponding to the area from the 1854 Gadsden Purchase (shown on the map in yellow with present-day state boundaries and cities) Southern Arizona is a region of the United States comprising the southernmost portion of the State of Arizona.
The Gila and Salt River Meridian intersects the initial point [clarification needed] on the south side of the Gila River, opposite the mouth of Salt River, at latitude 33° 22′ 37.82733″ north, longitude 112° 18′ 21.99931″ west from Greenwich based on NAD 83, and governs the surveys in the territory of Arizona.