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SAN ILDEFONSO CREEK. San Ildefonso Creek rises two miles south of Laredo in southwestern Webb County (at 27°28' N, 99°26' W) and runs southwest for four miles to its mouth on the Rio Grande, two miles south of Laredo (at 27°25' N, 99°29' W). The surrounding low rolling and flat terrain has locally shallow depressions and is surfaced by clay and sandy loams that support grasses, mesquite, chaparral, and water-tolerant hardwoods.


The following, adapted from the Chicago Manual of Style, 15th edition, is the preferred citation for this article.

"SAN ILDEFONSO CREEK," Handbook of Texas Online (, accessed November 28, 2015. Uploaded on June 15, 2010. Published by the Texas State Historical Association.