GENERALIZED BEDROCK GEOLOG IC MAP OF NORTH DAKOTA by Miscellaneous Map 28 North Dakota Geological Survey 19Ril John P. Bluemle Sidney H. Anderson, Acting State Geologist a 50 100 Miles I I I I I I I TERTIARY SYSrEM CRETACEOUS SYSTEI'vr lWi'a Tw While Rlvcr Group o Tp Slope FormatJon Kh Hell Creek Formation Greenoorn rorrnalHln lIlID .I JUI{ASSIC IWCKS o Tg Golden Valley Formation Tc Cannonball Formation D Kr Fox Hills Formalion G.]] Kb Iklle Fourchc, MowlY. D 0 OIU)OVICIAN I{OCKS Newcastle, and Skull [" .. ,.1 Ts Sentinel Outle FormatIOn 01'1 Ludlow Pormatlon PierJ c Formation Creek Form;lllon< • P€ IWCKS o Tb Oullion Creek Formation Kn NIObrara Formalion DKi Inyan Kara FOrlnalinn m Ke Carlile f'orl11alion