Named as one of five members of De Chelly [sic] Sandstone for White House Trail in Canyon de Chelly National Monument, Apache Co, AZ in the Black Mesa basin. Type section is at White House Trail. Consists of large-scale, high-angle, cross-stratified sandstone that forms canyon walls. Of eolian origin. Has some ripple marks and animal tracks. Flat truncation surfaces give member a layered appearance. In some places, thin, poorly sorted, calcareous silty sandstones overlie such surfaces. These silty sandstones may have been deposited in shallow ephemeral water caused by a high water table. Is 570 feet thick in type area [not clearly designated]. Absent south of Oak Springs Cliffs. Is 45 feet thick at Oak Springs Cliffs, 200 feet thick at Bonito Canyon, 502 feet thick at Nazlini Canyon, and 570 feet thick in Canyon de Chelly. Overlies Oak Springs Cliffs Member (new) of De Chelly. and locally overlies Hunters Point Member (new) of De Chelly. Underlies Black Creek Member (new) of De Chelly. Permian age.

Source: GNU records (USGS DDS-6; Denver GNULEX).