F O X H I L L S A N D L O W E R M E D I C I N E B O W 9 



LOCAL SECTIONS AND MAPS 



CORSON RaNCH, WyOMING, LoCAUTIES P. 371 AND P. 372 



Along the North Platte River in sections 2 and 3, T. 22 N., R. 85 W., thc valley 

 wall exposes a sectioii from thc upper part of the L(>wis shale through the Fox Hills for- 

 mation and into the ]Medicine Bow formation. The leaf horizons in the Mcdicine Bow 

 formation are located about a half mile north of the line of the section, as foUows: 



Locality P. 371: SE. \ sec. 34, T. 23 N., R. 85 W., 275 yards N. 75° W. of 

 the southeast section corner of sec. 34. 



Localily P. 372: SW. \ sec. 35, T. 23 N., R. 85 W., 260 yards N. 53° W. of 

 the half-mile marker of the lower side of sec. 35. 



The exact positions of these locahties and the areal distribution of formations 

 in the region are shown in figure 4. The measured section, indicating Uthology, 



R.es w 



R. 84 W, 



R. 83 w. 



SEDIMENTARY 

 ROCKS 



Alluvium 



■J S 



Fault 



-^— 

 Axis of 

 anticline 



FiG. 4— Geological setting of Localities P. 371, P. 372, and P. 373. After U. S. Geological Survey Bull. 804, pl. 27. 



