2019 Map of Loma Alta

About this map

The settlement of Seven Sisters anchors the southern portion of this South Texas landscape, situated at the junction of FM 2359 and River ST. The topography is defined by prominent elevations such as Loma Alta and the Devils Waterhole Hills, which rise above the surrounding brush country. This area, straddling the boundary between McMullen and Duval Counties, exhibits a drainage pattern characterized by intermittent waterways like San Jose Creek and Drummond Creek. The presence of Charco Valiente Spring and Walker Lake indicates critical water sources in an otherwise arid environment. Ranching infrastructure is evident through named thoroughfares such as Atkinson Ranch Rd and Walker Rd, while the eastern edge is traced by the Old San Diego Rd, suggesting historical transit corridors through the scrublands.