where does the hill country start in texas
Texas Hill Country The Texas Hill Country is a geographical region located in the Edwards Plateau at the crossroads of West Texas, Central Texas, and South Texas. Given its geographical location, terrain features, and native vegetation, the Hill Country could be considered the beginning or end of the American Southwest (depending on which direction one is travelling). The region is notable for its karst topography and tall rugged hills of limestone or granite.[1] Many of the hills rise to a height of 400-500 feet above the surrounding plains and valleys, with Packsaddle Mountain rising to a height of 800 feet above the Llano River in Kingsland.[2] The Hill Country also includes the Llano Uplift and the second-largest granite dome in the United States, Enchanted Rock. The terrain throughout the region is punctuated by a thin layer of topsoil and a large number of exposed rocks and boulders, making the region very dry and prone to flash flooding. Native vegetation in the region includes various yucca, prickly pear cactus, desert spoon, and wildflowers in the Llano Uplift. The predominant trees in the region are ashe juniper and Texas live oak.[3]
Flint Hills The Flint Hills historically known as Bluestem Pastures or Blue Stem Hills,[2] is a region in eastern Kansas and north-central Oklahoma named for the abundant residual flint eroded from the bedrock that lies near or at the surface. It consists of a band of hills stretching from Kansas to Oklahoma, extending from Marshall and Washington counties in the north to Cowley County, Kansas and Kay and Osage counties in Oklahoma in the south, to Geary and Shawnee counties west to east.[3] Oklahomans generally refer to the same geologic formation as the Osage Hills or "The Osage."