Text Figures 



Page 

 Section of the Morrison and Sundance formations in east blufiE of North 



Platte River, Wyoming 89 



Section of the Morrison formation on Red Creek, three miles east of Black 



Mountain summit, Wyoming 90 



Section of the Morrison formation in Como Bluff, Wyoming 90 



Section of the Morrison and Sundance formations on the north side of 



Oomo Anticline, Wyoming 91 



Exposures of the Morrison formation in Como Bluff, Wyoming 92 



Section of the Morrison and Sundance formations at Como Bluff, Wyoming 92 

 Section of the Morrison and Sundance formations on the south~side of 



Medicine Anticline, or "Bone Cabin Draw," Wyoming 92 



Section of the Morrison formation in the Freezeout Hills, Wyoming 95 



Section of the Morrison formation at Sioux Fault, Wyoming 96 



Section of the Morrison formation in the Freezeout Hills, Wyoming 96 



Section of the Morrison formation at Red Mountain, Wyoming 97 



Section of the Morrison formation at Red Mountain, Wyoming 97 



Section of the Morrison formation on the east slope of the ridge west of 



Downey Soda Lakes, Wyoming 98 



Section of the Morrison formation on the South Fork of Horse Creek, 



Wyoming '. 98 



Section of the Morrison formation in drill hole in floor oi coal mine at 



Cambria, Wyoming 101 



Section of the Morrison formation on north side of Sourdough Creek, six 



miles north of Hulett, Wyoming 103 



Section of the Morrison formation on ridge south of Lytle Creek, Wyoming 103 

 Section of the Morrison formation 4 miles east-southeast of Devil's Tower, 



Wyoming 104 



Section of the Morrison formation on north side of Deer Creek, 10 miles 



northeast of Hulett, Wyoming 104 



Section of the Morrison formation near head of Burnt Hollow, 4 miles 



northwest of Hulett, Wyoming 105 



Section of the Morrison formation a short distance east of the above 105 



Section of the Morrison formation on the north side of Moores Canyon, 2% 



miles northwest of Hulett, Wyoming 106 



Section of the Morrison formation 2i/^ miles west of Bellefourche River, 



Wyoming 106 



Section of the Morrison formation 3 miles south of Rapid Gap, South 



Dakota 107 



Section of the Morrison formation on the Bellefourche River, Wyoming. . . 107 



Section of the Morrison formation on Inyan Kara Creek, Wyoming 108 



Section of the Morrison formation at Sheldon Post-office, Wyoming 108 



Section of the Morrison formation at Kara Peak, Wyoming 109 



Section of the Morrison formation on Beaver Creek, Wyoming 109 



Sections of the Morrison formation showing decrease in thickness from 



southwestern Colorado northward 112 



Sections of the Morrison formation showing decrease in thickness from 



southwestern Colorado northeastward 113 



