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 nearly 100,000 acres were listed for sale in Llano County recently; the combined value of all Llano County land and rural real estate for sale was $865 million. Llano County ranks 30th out of 254 counties in the Lone Star State for the total number of acres of land currently advertised for sale. There were five properties listed as sold in Llano County through the Land Network Comparable Sales Program. This represented a total value of $4,067,020. Of all farms, ranches, hunting land and other land for sale in Llano County, Horseshoe Bay featured the most land for sale. Based on its natural assets, Llano County's economy is dependent on tourism and recreation. Llano County is the 93rd biggest county (965 square miles) in Texas. It's located in the Highland Lakes Texas region of the state.