ILLUSTRATIONS
FIGURE Page [52.—Index map showing location of Devils Tower National Monument] 2 [53.A.—Northwest side of Devils Tower showing how the columns taper or converge and in places unite near the top and are cut by numerous cross-fractures] 4 [B.—Southwest corner of Devils Tower showing the columns flaring out and merging to form the massive base] 4 [54.—Generalized section of the sedimentary rocks of the Devils Tower National Monument] 6
A CONTRIBUTION TO GENERAL GEOLOGY
GEOLOGY OF DEVILS TOWER NATIONAL MONUMENT, WYOMING
By Charles S. Robinson