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 Robertson County recently was $158 million, representing a combined 10,270 acres of land for sale in Robertson County. Robertson County ranks 112th in the Lone Star State for the total acreage of land currently advertised for sale. There were eight properties listed as sold in Robertson County through the Land Network Comparable Sales Program. This represented a total value of $4,778,059. Among cities in Robertson County with farms, ranches, and rural real estate for sale, Franklin featured the most land for sale. Economically speaking, Robertson County's is largely dependent on mining and mineral extraction-related businesses and services. Robertson County is the 188th largest county (865 square miles) in Texas. It's located in the Brazos Texas region of the state.