ALUM CREEK. Alum Creek rises three miles south of McDade in northeastern Bastrop County (at 30°14' N, 97°13' W) and flows southward for eighteen miles to its mouth on the Colorado River (at 30°03' N, 97°12' W). Before entering the Colorado River floodplain, the stream travels through gently to strongly sloping uplands characterized by post oak woods and sandy soil, then enters the Lost Pinesqv area. The water flows over and through aluminum sulfate deposits and so has a high alum content. In 1856 Fred and Jacob Steussy were advertising their "steam mill pinery" on the creek below Bastrop.
William Henry Korges, Bastrop County, Texas: Historical and Educational Development (M.A. thesis, University of Texas, 1933). Bill Moore, Bastrop County, 1691–1900 (Wichita Falls: Nortex, 1977).