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 land for sale in Freestone County recently was $99 million, representing a combined 18,866 acres of land for sale in Freestone County. Freestone County ranks 89th in Texas for the total acreage of land currently advertised for sale. There were eight properties listed as sold in Freestone County through the Lands of America Comparable Sales Program. This represented a total value of $1,666,540. Fairfield had the most land for sale. Mining and mineral extraction-related services are the main economic drivers in this part of Texas. Freestone County is Texas's 177th biggest county (891 square miles). It's located in the Blacklands North Texas region of Texas.