288 EEPOET UNITED STATES GEOLOGICAL SURVEY. 



Taile of the Yelloio Crater Group — Continued. 



No. 



Size of spring. 



I. 



«2 



a =" 



H 



Eemarks. 



5 





op 



{ lis 



Not taken - 

 Not taken 

 190 



C 162^ 

 \ 170 C 

 ( 198 > 

 a 170 

 6 195 

 a 190 

 6 190 

 cl95 



72 

 72 



The principal spring is a small geyser cone sur- 

 rounded by a number of small pools. 



Pearly and red geyserite. 



Large red pool with springs at one end. 



Plate-like yellow basin. Hole at one end spouts 

 a little. 



There are 5 sputtering holes in a basin, and out- 



6 



3Jby4J feet 



V 



83Jby 30 feet 



9 



10 



4 J by 13 feet, 4 feet deep 



6 feet by 1\ feet 







side are two, a and 6. 









11 





a is a fissure. Between 9 and 11 are other springs 

 and vents ; 11 has a red-lined outlet. 









c2\ by 3^ feet 





J3 

 14 





Simply oozes in the marsh, where it is impossi- 





5 







ble to define springs. 



RECAPITULATION. 



The following is a recapitulation of the springs of the Shoshone Geyser 

 Basin : 



Group. 



13 

 © 



Highest surface 

 temperature. 





32 

 7 

 35 

 22 

 25 

 17 

 25 

 56 

 15 

 16 

 69 

 32 



°P. 

 198 to 200 





192 





197 



Little Giant . .. 



197 



Sulphur Hills . ... . . 



195 





194 





195 





201J 





199 



South 



190 



IJ'orth 



209 





198 









Total 



356 









The following is a list of the geysers that are known to spout: 



Geysers of the Shoshone Basin. 



Name. 



Interval. 



Duration. 



Max. height. 



Eemarks. 





About 5 days. 



35 sec. to3min. 



12 to 14 min . . . 

 About 2 erup- 

 tions daily. 



5 to 8 min. center cone ; 



10 to 13 min. north 



cone. 

 2 to 30 sec . 



114 feet center 

 cone; 59 feet 

 north cone. 



23 feet 



10 feet 



50 feet 



20 feet 



5 feet 



Has two or three periods, sep- 

 arated by three to eight 

 hours. 



There appears to be intervals 

 of quiet longer than noted 

 here. 





Little Bulger . . 





12 to 25 min 









Time not taken. 

















3 feet 



Probably true eruption not 

 seen. 





30 min. to 1 

 hour. 





10 feet 









