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 almost 6,000 acres were listed for sale in Lee County, Texas, recently; the value of all Lee County farms, ranches, hunting land and other land for sale was $47 million. Lee County ranks 134th out of 254 counties in the Lone Star State for the total acreage of land currently advertised for sale. There were six properties listed as sold in Lee County through the Lands of America Comparable Sales Program. This represented a total value of $3,380,450. Among cities in Lee County with land and rural real estate for sale, Giddings had the most land for sale. Its economy is defined as agricultural, with 1,807 farms recorded in the county during the most recent 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 the state.