LAGUNILLAS CREEK. Lagunillas Creek, also known as Laguna Creek, rises near Farm Road 472 twelve miles east of Pearsall in eastern Frio County (at 28°56' N, 98°51' W) and runs southeast for twenty-one miles to it mouth on San Miguel Creek, sixteen miles southeast of Charlotte and just north of the McMullen county border in south central Atascosa County (at 28°39' N, 98°37' W). The surrounding flat terrain has local shallow depressions and is surfaced by clay and sandy loams that support water-tolerant hardwoods, conifers, and grasses. The land is used for dry cropland. The area was settled by 1858.