Fitzroy is the name of three Australian rivers. The Fitzroy River in Queensland flows about 300 miles (485 kilometers) from the Dawson and MacKenzie rivers to Keppel Bay near Rockhampton. The Fitzroy in Victoria flows 30 miles (48 kilometers) from near Mount Deception to Portland Bay. The Fitzroy in northwestern Australia is about 350 miles (560 kilometers) long. Irrigation schemes have been constructed in the Fitzroy region in Queensland to provide water for irrigating farms that grow grain sorghum, cotton, corn, soybeans, lucerne hay, and wheat. The Dawson scheme makes use of a number of dams called weirs, such as the Theodore Weir. The Negoa scheme includes the 160-foot-high (49-meter-high) Fairbairn earth-fill dam, which is made up largely of compacted earth materials. See also Dam; Irrigation.