BULL. GEOL. SOC. AM. 



VOL. 17, 1905, PL. 57 



Figure 1. — Natural Arches in Sandstone 



At this locality the sea is rapidly encroaching on the cliffs south of the mouth of the 

 Quillayute river. Photograph by Frofessor Henry Landes, 1902 



Figure 2. — Overthrust in Oligocene-Miocene Shale, % Mile west of Gettysburg 



A characteristic exposure of the shales. Photograph by Chester W. Washburne, 1004 



GEOLOGIC FEATURES OF COAST OF OLYMPIC PENINSULA, WASHINGTON 



