PETTYS CREEK. Pettys Creek rises on Ross Prairie two miles southwest of Fayetteville in east central Fayette County (at 29°53' N, 96°41' W) and flows intermittently in a southwesterly direction for 6½ miles. It runs to the west of Ellinger and drains into the Colorado River (at 29°48' N, 96°44' W). Throughout most of its length the stream flows through fine sand or firm clay loam topsoils over firm clay subsoils. The land is rated as fair for agriculture and is used primarily as pasture for cattle and horses. Near the creek's mouth the soils change to calcareous clay and sandy loam layers rated good for agriculture. These produce good crops of grain, pecans, and hay. The creek is located in a grassy area with rolling terrain. Its name is derived from that of John Petty, one of Austin's Old Three Hundred, who settled here before 1830.