Bácum Municipality is a municipality of southwestern Sonora, in northwestern Mexico. The population was 21,322 in 2005. Geography Bácum Municipality is located in one of the two valleys of the Yaqui River. The area of the municipality is 1,409.7 km² (544.3 mi²) It is bounded by the Municipalities of Cajeme in the east and Guaymas in the west — and the Gulf of California in the south. County seat The county seat of Bácum Municipality is the town of Bácum. The municipality lies next to the large urban center of Ciudad Obregón in Cajeme. Yaqui Indians The indigenous community is very large, with more than 9,000 residents identified as Yaqui in the 2000 census. Economy The Bácum Municipality's main economic activity is intensive agriculture, with more than 300 square kilometers under irrigation by canal. The Yaqui River's water is used for irrigation in a system of canals. The main crops are wheat, corn, soybeans, barley, cotton, and garden vegetables, as well as seasonal crops such as alfalfa and some fruits. The coastline in the south is long. Some fishing is practiced. Industries are small, and consist chiefly of packing houses for vegetables and liquid fertilizer production. See also Bácum — town Spanish missions in the Sonoran Desert Municipalities of Sonora References Instituto Nacional de Estadistica, Geografia, e Informática Enciclopedia de los Municipios de Mexico Municipalities of Sonora