A pithouse excavated at the Jack Allen site in 1969-70 had picket-post walls and lacked the stone-slab wall foundations found in most Antelope Creek houses. Picket-post walls are more common in the eastern Texas Panhandle and in western Oklahoma but it is not yet known whether they reflect a construction technique prefered by non-Antelope Creek peoples or perhaps a relatively early stage in the evolution of building techniques in the region. Sorting out the meaning of such patterns will require a larger sample of well-dated and carefully described houses. Photo courtesy Chris Lintz.