I know they range the Brady Creek, other large creeks in Concho and San Saba River down around Menard in Menard County. There a lot of them in McCulloch County. I have seen them as far south into South Texas along HWY 624 east of Cotulla along the Nueces River. At one time there was a larger herd of them close to Haujuco Lane off of HWY 624. I have also seen some free ranging along Cummins Creek north of Columbus. I have heard there was some free ranging in Calhoun County at one time years ago.