U. S. GEOLOGICAL SURVEY BULLETIN 707 PLATE LXXVII 
+ ae, 
A COLUMN OF SANDSTONE IN THE COLORADO NATIONAL MONUMENT. 
Th: 
hne th cc toagy er en set aside because of the wealth of detail in the carving and the 
riches 1e ome of ~ e ir ion ‘auleonag of deep-red sandstone which have raicoeg 
arate rom 1¢ parent cliff by weathering. P on 3 he Deny 
Rio Grande Western Railroad. Photograph furnished by the 
