of 1933 the P&SF operated 1,879 miles of track, being 166 miles owned and the rest leased or operated under trackage rights. The P&SF was merged into its parent AT&SF on August 1, 1965. At least some of this trackage has since been abandoned, including the Clinton-to-Strong City route which was abandoned around 1981. References External links Oklahoma Historical Society Texas State Historical Association Oklahoma Digital Maps: Digital Collections of Oklahoma and Indian Territory Photos of West Texas and the Llano Estacado Predecessors of the Atchison, Topeka and Santa Fe Railway Defunct Texas railroads Former Class I railroads in the United States Railway companies established in 1914 Railway companies disestablished in 1965 Defunct Oklahoma railroads Amarillo, Texas Hemphill County, Texas Gray County, Texas