HAYMOND MOUNTAINS. The Haymond Mountains are thirteen miles southeast of Marathon in northeastern Brewster County (centered at 30°06' N, 103°04' W). The highest peak in the mountains has an elevation of 4,175 feet above sea level, rising 455 feet above Peña Blanca Creek, a mile west. The Haymond Mountains are two nearly parallel ridges joined at their southwestern end; they are the end of a narrow chain of mountains that begins near U.S. Highway 90, eighteen miles east of Marathon, and extends twelve miles southwest. Soils in the Haymond Mountains are shallow, stony, clay and sandy loams that support oak, mesquite, and grasses.