Construction of the Wellton-Mohawk Division features was started in August 1949. The project was essentially complete by June 30, 1957. The Yuma Mesa Unit grows citrus, alfalfa hay and seed, peanuts, cotton, and grains. Alfalfa, cotton, melons, citrus, winter vegetables, small grains, and Bermuda grass seed are grown in the North and South Gila Units and the Wellton-Mohawk Division. Sheep are brought from summer ranges into the area and are wintered on irrigated pastures of the project before being shipped to feed lots and markets.
Cattle feed lots of various sizes operate in the area.