556 ■ D. F. HEWETT 



Sheep Mountain, is only i,ooo feet thick and there are large areas 

 over which the block is completely removed and "early basic 

 breccias" rest on Wasatch beds (?). 



TERTIARY DEFORMATION AND SEDIMENTATION 

 IN THE BIGHORN BASIN 



The table opposite p. 556 is presented at this time in the hope 

 that it may aid in a better understanding of the relation of the 

 Heart Mountain overthrust to the other deformations of the Bighorn 

 Basin. It is not considered necessary to present in this paper any 

 more of the evidence on which the conclusions are based. 



REFERENCES 



1. Blackwelder, E. "Post-Cretaceous History of the Mountains of Central 

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2. Dake, C. L. "The Heart Mountain Overthrust and Associated Structures 

 in Park County, Wyoming," Jour. Geol., XXV (1918), pp. 45-55. 



3. Darton, N. H. "Geology of the Owl Creek Mountains, Wyoming," 

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4. . "Geology of the Bighorn Mountains," U.S. Geol. Survey, Prof. 



Paper No. 51 (1906). 



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