88 ANNALS NEW YORK ACADEMY OF SCIENCES 



' Section of Morrison Formation near Watson's Ranch, on Emhar Road, just 

 north of Owl Creek, Wyoming 



Feet 



Massive gray sandstone , . ■ 10 



Concealed material, evidently soft and sandy 125 



135 





Pig. 46. — Section of the Morrison ■forma- 

 tion on Trail Greek, northwest of Cody, 

 Wyoming. 



1. — Morrison formation ; 2. — Sundance 

 formation. Scale, 125 feet to 1 incli. 

 (Fisher. ) 



Fig. 47. — Section of the Morrison forma- 

 tion south of Clark Fork Canyon, Wyo- 

 ming. 



Scale, 125 feet to 1 inch. (Fisher.) 



The following section of the Morrison formation in the Douglas oil 

 and gas field, Wyoming, is given by Barnett (1914, 1) : 



Section of the Morrison and Sundance Formations in east Muff of North Platte 

 River, in Sec. 9, T. 31 N., R. 71 W. 



Feet 

 Morrison formation : 



Shale, blue and red, with a 6-foot carbonaceous sliale near top 180 



Limestone, compact, f ossiliferous 3 



Sundance formation : 



Shale, blue and pink, calcareous and sandy, fossiliferous in lower part 60 



Sandstone 10 



• Shale, bluish gray, with few bands of sandstone 60 



Sandstone 12 



Shale, bluish gray, sandy 30 



Sandstone, gray, heavy bedded 75 



430 



In central and southern Wyoming the Morrison formation has been 

 well described by Darton (1908, 1). The formation outcrops along the 

 eastern border of the Wind Eiver Mountains, along both sides of the Owl 

 Creek Mountains, on the north side of the Eattlesnake Mountains, in the 

 Shirley and Freezeout Hills, south of Casper and Douglas and east of 

 Medicine Bow and Eock Creek. It also occurs near Sheep Mountain, 



