2016 Map of Loma Alta

About this map

Seven Sisters anchors the southern portion of this South Texas landscape, situated near the boundary between McMullen and Duval Counties. This 2016 survey illustrates a terrain defined by subtle elevation changes and seasonal drainage patterns, where features like Loma Alta and the Devils Waterhole Hills rise above the surrounding brush country. Water sources, vital for ranching and wildlife in this semi-arid environment, are marked by Charco Valiente Spring and Walker Lake, along with the courses of Drummond Cr and San Jose Cr. The infrastructure of the area consists largely of rural routes and ranch access, including Atkinson Ranch Rd and River St, reflecting the persistent land-use patterns of these South Texas borderlands.