SANCHEZ CREEK. Sanchez Creek rises near Weatherford in central Parker County (at 32°46' N, 97°51' W) and flows south for just over fifteen miles, passing through nearly level to rolling terrain surfaced by shallow to deep clays and loams that principally support grasses. For most of the county's history the Sanchez Creek area has been used as rangeland and cropland. The stream was probably named for Frank Sanchez, who lived near its banks in the 1850s. It empties into the Brazos River just west of Tin Top in the southern part of the county (at 32°35' N, 97°50' W).