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N. H. BARTON 



crater of still larger size, a short distance northeast of the sulphur 

 spring on the east bank. One of the same character, but much 

 less distinct, is found on the high terrace west of the cemetery 500 

 feet above the river. It is probable, from the present appearances 



Fig. 2a. — Terrace of hot-spring deposit on the bank of Bighorn River. Looking 

 south to Thermopolis, with Owl Creek Mountains in the distance. Shows overflow 

 of hot spring. 



of the deposits, that formerly the hot-spring activity was much 

 greater than at present. Whether or not there were geysers is diffi- 

 cult to state, but some of the features of the deposits strongly suggest 



Fig. 3. — Cross-section of travertine terraces a short distance north of Thermopo- 

 lis, Wyo. Looking north. Length of section about one mile. 



