<Tr> <Td_colspan="2"> Map of Texas Hill Country </Td> </Tr> <Tr> <Td_colspan="2"> Website: Handbook of Texas: Hill Country </Td> </Tr> <P> The Texas Hill Country is a geographic region located in the Edwards Plateau at the crossroads of West Texas, Central Texas, and South Texas . Given its location, climate, terrain, and vegetation, the Hill Country can be considered the border between the American Southwest and Southeast . </P> <P> The region is notable for its karst topography and tall rugged hills of limestone or granite . 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 . 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 . </P>

What part of texas is the hill country