SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 69, NO. 4, PL. 2 



Fig. i. — Wingate sandstone near Lamy, New Mexico. A massive light red sand- 

 stone about ioo feet thick, resting on beds of purple sandstone and shale. Photograph 

 by N. H. Darton. 



Fig. 2 — Rocks of La Plata group near Segi Mesas, Arizona, showing the Navajo 

 sandstone above, the Wingate sandstone below, and the space from which the 

 softer shaly beds of the Todilto formation has been removed, now occupied by an 

 ancient cliff-dwelling known as the Keet Steel village. Photograph by H. E. 

 Gregory. 



