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 ~Kg 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 ~Kp PierJ c Formation Creek Form;lllon< • P€ I'J~ECAMBI~IAN IWCKS

o Tb Oullion Creek Formation Kn NIObrara Formalion DKi Inyan Kara FOrlnalinn

m Ke Carlile f'orl11alion