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LOS OLMOS CREEK (Starr County). Los Olmos Creek rises at the confluence of Las Blancas and El Sauz creeks in central Starr County (at 26°34' N, 98°52' W) and runs southeast for twenty miles to its mouth on the Rio Grande, two miles southeast of Rio Grande City and a mile east of the port of entry bridge (at 26°21' N, 98°48' W). The immediate vicinity is flat and surfaced by clays and loams that support water-tolerant hardwoods, conifers, and grasses. The surrounding topography includes low-rolling hills and prairies with some mesquite.


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

"LOS OLMOS CREEK (STARR COUNTY)," Handbook of Texas Online (, accessed November 29, 2015. Uploaded on June 15, 2010. Published by the Texas State Historical Association.