VOL. 6-1, NO. 4, PU. 43 



etaniorphosed strata in the world. J'ully o.uuu feet of the l^nkar and Chuar series of formations are 

 ite 43, beneath the Cambrian. The red sandstones of the Unkar series (Un) stand out in strong reHef 

 inyons and projecting headlands between them. To the north the sandstones, shales and limestones of 

 id Nunkoweap. Everywhere erosion planed these formations down nearly to a level before the trans- 



in thickness of the Algonkian (C/« = Unkar) series on which it rests, 

 ^iew, and where the Colorado River flowing from the north bends to the westward. 



