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. A combined almost 100,000 acres were listed for sale in Burnet County, Texas, recently; the value of all Burnet County farms, ranches, and rural real estate for sale was approximately $1 billion. Burnet County ranks eighth in the Lone Star State for the combined amount of land currently advertised for sale. There were five properties listed as sold in Burnet County through the Land Network Comparable Sales Program. This represented a total value of $29,046,450. Burnet had the most land for sale. Based on its natural assets, tourism and recreation contribute significant revenue toward Burnet County's overall GDP. Burnet County is Texas's 77th biggest county (1,021 square miles). It's located in the Highland Lakes Texas region of Texas.