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Aerial view of the Álvaro Obregón Ouiachic dam or Oviáchic dam in Obregon Sonora , is an important dam in Mexico, the largest dam in the Yaqui river basin. It forms the Oviáchic lake or reservoir. It is located at the foot of the Sierra Madre Occidental. Built mainly for irrigation of the Yaqui Valley.Water © (Photo by Luis Gutierrez /<br />
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Vista aerea de la presa Álvaro Obregón  Ouiachic o presa del Oviáchic en Obregon Sonora , es una importante presa de México, la represa más grande de la cuenca del río Yaqui. Forma el lago o embalse Oviáchic. Se encuentra al pie de la sierra Madre Occidental. Construida principalmente para riego del valle del Yaqui. agua © (Photo by Luis Gutierrez/<br />
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Lake Ouiachic is located in the foothills of the Sierra Madre Occidental and is created by the Álvaro Obregón Dam. Lake Ouiachic is fed by and drained by the Yaqui River. The dam was completed in 1952 with the purpose to regulate water flow of the Yaqui River, prevent floods, and generate electricity.