 The basin is bound on the south by the Wichita-Amarillo uplift, on the east by the Nemaha uplift, on the north by the Central Kansas uplift, and on the west by the Las Animas arch.Sedimentary rocks from Cambrian through Permian age fill the basin.The sedimentary column is thickest, in excess of , at the southern edge, next to the upfaulted Wichita-Amarillo uplift.