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FLAT ROCK CREEK (Throckmorton County). Flat Rock Creek rises two miles south of the Upshur Triangulation Station in northwest Throckmorton County (at 33°18' N, 99°19' W) and runs southeast for ten miles to its mouth on Elm Creek, four miles northwest of Throckmorton (at 33°15' N, 99°14' W). There are several small reservoirs along its course. The streambed crosses variable terrain with a sandy and clayey loam surface in which grow juniper, live oak, mesquite, and grasses.


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

"FLAT ROCK CREEK (THROCKMORTON COUNTY)," Handbook of Texas Online (, accessed October 10, 2015. Uploaded on June 12, 2010. Published by the Texas State Historical Association.