2019 Map of Sevenmile Hill

About this map

Sevenmile Hill and Big Mtn rise above the South Texas brush country in this 2019 survey of Uvalde County. The landscape is defined by its seasonal hydrology, where the Leona River and various sloughs form the primary drainage network. Notable features include Willingham Lake and the Eightmile Waterhole, indicating vital water sources in an otherwise arid region. The drainage patterns of Cooks Slough, Boon Slough, and Taylor Slough weave through a terrain increasingly marked by private ranch roads and local infrastructure. This modern topographic study by the U.S. Geological Survey illustrates the transition from traditional open range to managed ranch lands like Rancho Encino. The mapping of Indian Cr and Little Indian Cr in the northwest corner highlights the complexity of the local watershed feeding into the larger river systems of the region.