The central region of Texas covers the state's three largest cities: Houston, Dallas-Fort Worth and San Antonio. The limestone terrain of Texas Hill Country lies in Central Texas, as do the state's three largest rivers, the Trinity, the Brazos and the Colorado. There was a combined nearly $135 million of farms, ranches, hunting land and other land for sale in Mills County recently on Lands of America. The total of all Mills County ranches, farms, hunting land and other rural land and acreage for sale was around 100,000 acres. Mills County ranks 102nd in the Lone Star State for the total acreage of land currently advertised for sale. There were 11 properties listed as sold in Mills County through the Lands of America Comparable Sales Program. This represented a total value of $13,351,529. Goldthwaite featured the most land for sale. Its economy is defined as agricultural, with 870 farms recorded in the county during the most recent U.S. Census. Farming activities in Mills County generate annual revenues of $4 million, the majority of which comes from livestock products. Mills County is Texas's 213th largest county (749 square miles). It's located in the Hill Country North Texas region of the state.