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 9,000 acres were listed for sale in Lee County, Texas, recently; the combined value of all Lee County land and rural real estate for sale was around $131 million. Lee County ranks 151st out of 254 counties in the state for the total acreage of land currently advertised for sale. Among cities in Lee County with ranches, farms, hunting land and other rural land and acreage for sale, Lexington had the most land for sale. Lee County has a large agricultural economy, with 1,807 farms recorded in the county during the latest U.S. Census. Farming activities in Lee County generate annual revenues of $2 million, the majority of which comes from livestock products. Lee County is the 230th largest county (634 square miles) in Texas. It's located in the Blacklands South Texas region of Texas.