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. The value of all ranches, farms, hunting land and other rural land and acreage for sale in Texas's Hays County recently was around $1 billion, representing a total of 15,594 acres of land for sale in Hays County. Hays County ranks 32nd out of 254 counties in the state for the combined amount of land currently advertised for sale. There were four properties listed as sold in Hays County through the Land Network Comparable Sales Program. This represented a total value of $2,905,200. Wimberley featured the most land for sale. Hays County is the 225th biggest county (679 square miles) in Texas. It's located in the Blacklands South Texas region of the state.