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FLATROCK CREEK (Young County). Flatrock (Flat Rock) Creek rises four miles east of Graham in southeast Young County (at 33°04' N, 98°35' W) and runs southwest for six miles to its mouth on the Brazos River, near Farm Road 1287 three miles south of Graham (at 33°04' N, 98°30' W). The source of the creek is Agency Springs in Dark Canyon. These springs, which provided water for the Brazos Indian Agency (see BRAZOS INDIAN RESERVATION), remained slightly active in 1980, though much below their former flow. Flatrock Creek runs through a ranching area with hilly terrain surfaced by shallow, stony clay and sandy loam soils that support oak, grasses, and mesquite.

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Handbook of Texas Online, "Flatrock Creek (Young County)," accessed November 18, 2017,

Uploaded on June 12, 2010. Published by the Texas State Historical Association.