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 Blanco County recently was $712 million, representing a combined 18,453 acres of land for sale in Blanco County. Blanco County ranks 56th in the Lone Star State for the combined amount of land currently advertised for sale. There were six properties listed as sold in Blanco County through the Land Network Comparable Sales Program. This represented a total value of $10,379,001. Blanco had the most land for sale. Based on its natural assets, Blanco County's economy is dependent on tourism and recreation. Blanco County is the 219th largest county (713 square miles) in Texas. It's located in the Hill Country South Texas region of Texas.