High Quality Content by WIKIPEDIA articles! The Texas Hill Country is a vernacular term applied to a region of Central Texas, that features rolling, somewhat rugged, hills that consist of thin soils lying on limestone.[1] It also includes the Llano Uplift and the second largest granite monadnock in the United States, Enchanted Rock, which is located 18 miles (29 km) north of Fredericksburg. The Hill Country reaches into portions of the two major metropolitan areas of Central Texas, especially in San Antonio's northern suburbs and the western half of Travis County, ending just west of downtown Austin. The region is the eastern portion of the Edwards Plateau bounded by the Balcones Fault on the east and the Llano Uplift to the west and north.