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 approximately 100,000 acres were listed for sale in Texas's Bastrop County recently; the combined value of all Bastrop County land and rural real estate for sale was nearly $378 million. Bastrop County ranks 55th in Texas for the combined amount of land currently advertised for sale. There were four properties listed as sold in Bastrop County through the Land Network Comparable Sales Program. This represented a total value of $3,445,095. Bastrop had the most land for sale. Bastrop County is the 174th biggest county (895 square miles) in Texas. It's located in the Blacklands South Texas region of the state.