PEALE.J 



SHOSHONE GEYSEE BASIN NOKTH GROUP. 



283 



NORTH GROUP. 



The springs included under this group are situated on the continua- 

 tion of the mound on which the South Group is located. Towards the 

 north it slopes gradually to the level of the Yellow Crater Group. The 

 slopes towards the river are not so steep as in the south portion of the 

 mound, and a number of the springs are near the river-level. There are 

 some 47 springs included in the table, of which only a few are given on 

 the map in the report for 1872. Professor Bradley, in the report, simply 

 mentions the group, as follows: 



On the opposite [west] side of tlie creek is a broad terrace of the siliceous spring 

 depo&its, uj)on wliich stand several small mounds very prettily ornamented, from 1 foot 

 to 2 feet high, whose pools boil considerably, and evidently spout occasionally, though 

 no one of them was seen in eruption. One of these, near the creek and nearly oppo- 

 site to Minute-Man, is shaped like a conch-shell and strongly colored with iron, and 

 was called Iron Conch Geyser. 



The spring mentioned by Professor Bradley could not be identified, 

 as none of those near the river, opposite the Minute-Man, answer the 

 description. The Bronze Geyser is strongly colored with iron, but the 

 shape does not agree. In the following table all the springs of the group 

 are noted : 







Table of the North Group. 







No. 



Name. 



Size of spring. 



h 



tgS 



p. 



a <D 







i 



a° 



Bemarks. 



1 





a 2 by 3 feet 



6 7 by 10 feet 



Fissure 3 feet 9 

 inches by 1 foot. 



9 by 6 feet; 5 feet 

 deep. 



8J feet diameter; 6 

 feet deep. 



20 by 30 inches. 



45i by 20 or 30 feet ; 

 6 feet deep at deep- 

 est. 



a7bylOJfeet 



!*4iby5feet;2Jfeet 

 deep. 



8 by 14 feet outside. 



Fissure 7 feet 6 

 inches long. 



4 openings in space 

 0f2by4feet. 



OF. 

 a 198 

 b 189 



191J 

 162 



190 

 140 

 160 



a 189 

 b 181 



*189andl96 



°F. 



OF. 



70 



a is a constant spouter. 

 b has a laised beaded 





Fissure Spring 





91 





70 

 70 



rim, yellow and white. 

 There are 5 other open- 

 ings. 

 There are 3 holes besides 



^ 



3 feet below 167 



the main iissure. 



White-lined pool, with 

 yellow - lined water- 

 way. 



Almost circular white- 



4 





4 feet below 199 70 



.■> 







70 

 70 



70 



70 



lined pool, with scal- 

 loped edge. It is a 

 gentle boiler. 



6 



Glen Spring... 

 b Brown Sponge 

 Yellow Sponge 





moss-lined pool, near 

 a dead mound. Slight 

 bubbling uoied. 

 Irregular in shajie, with 



7 



o 9 feet below, 197 

 6 J foot below, 190 



water rising and fall- 

 ing. One of the hand- 

 somest springs in the 

 region, 

 a is a yellow pool. 

 b is lined with brown 

 globular masses, and 

 the water lia.s i)eriodic 

 risings and fallings. 

 Spouts several feet 

 above the crater, which 

 is light yellow. The 

 water splashes irreg- 

 ularly. 

 Between 8 and 9 are two 



^ 





10 





cl85 





70 



holes, one of which is 

 a geyser vent. Below 

 9 is a third hole, 

 a is a small spouter, 

 throwing water 6 

 inches to a foot ; c is 3 

 by 5 feet. 









* During eruption it is 199. 



