MARYLAND GEOLOGICAL SURVEY 



UPPER CRETACEOUS, PLATE II 



Fig. i. — view of white rocks, 



PATAPSCO RIVER, SHOWING INDURATED SANDSTONE LEDGES OF 

 RARITAN FORMATION. 



Fig. 2.- 



-V1EW OF ROCKY POINT, MOUTH OF BACK RIVER, SHOWING INDURATED SANDSTONE BED 

 IN THE RARITAN FORMATION. 



