PEALE.] 



SHOSHONE GEYSER BASIN NOETH GEOUP. 



287 



remains after the specimens are dry and Lave been kept for montlis. 

 It is probably due to iron in the composition of the deposit. The si)rings 

 are surrounded "with nodular masses of it, the tops of which are bronzed. 

 The main sirring (&) is 5^ feet long and surrounded by small, shallow 

 basins. Its temijerature is 197 at about 2 feet below the surface. This 

 spring is one of a subgroup which is near the level of the river. 



Ko. 21. Lion Geyser. — This is a small spouter in a basin measuring 

 17 by 17 feet. The orifice of the spouter is about 2 feet in diameter. 

 There is another opening of about the same size. The water is spurted 

 diagonally to a considerable height from beneath a flaky dei)Osit; the 

 interval was not determined. On the 16th of August it spurted about 

 half-past 12, the eruption lasting about 2 minutes. On the 25th it was 

 noted three times as follows: 9 a. m., 9.40 a. m., 10.42 a. m ; the intervals 

 here being 40 minutes and 1 hour and2 minutes. On the 26th two erup- 

 tions were noted as follows : 12.58 p. m., 1.29 p. m., showing an interval of 31 

 minutes. The observations, however, were insufficient to deduce any 

 conclusions. Temperatures were 186° F. in geyser, 156° F. in outer open- 

 ing. 



ISTo. 32. Frill Spring. — This was named from the white, frill like edge 

 on the inner spring. The outer edge of the outer spring is yellow and 

 gray, bordered with rosette-like masses which extend into the white-lined 

 water out let ; surface temperature 192° F., 7|^ feet below the surface ; 199° 

 F. Water goes to 33 from this spring. 



No. 33. Pearl Spring, named from the white, pearly basin with rosette 

 edge. A red-lined outlet carries away the surplus Avater. The spring 

 is irregular in shape and has a surface temperature of 185, which increases 

 to 187 at a-depth of 18 inches below the surface. 



YELLOW CRATER GROUP. 



The Yellow Crater Group designates a small scattered group of springs 

 that are located back of the marshy area on the west side of the creek, 

 opposite the Little Giant Group. The spring from which we have 

 named the group was so called on Mr. Bechlei's Map of 1872. 



1^0. 1. Telloic Grater Spring is a white, funnel-shaped basin with an 

 orange-yellow rim, on the summit of a geyserite mound. Near it is a 

 second mound, in which the spring is now extinct. 



In the marshes below the springs enumerated in the table following 

 this there are a number of spring holes concealed in the grass. The 

 group as a whole is unimportant, containing no geysers, and the reader 

 is referred to the table for particulars in regard to the springs included 

 under it. 



No 7 is probably the Boiling Pond of Bechler's 1872 map. 





Tahle of the Yellow Crater Group. 



No. 



Sizo of Bpring. 



a . 

 ii 



m 



s 



s 



Remarks. 



1 



2 



6 Icet diameter, 3i feet deep . 

 40 by 56 inches 



°F. 

 154 



173 

 150i 



145 

 a 1G3 

 6 190 



72 



72 



72 



72 



White, funnel-shaped basin, with orange-yellow 

 rim, on a geyserite mound. 



Brownish-gray pool 



Yellow pool, red at one end, with holes in tho bot- 

 tom. There are sulphur oozes and mud holes 

 in the grass below the sprina. 



This i.s a yellow and reddish 7)ool, with an active 

 hole close by and several other small openings 

 between it and No. 0. 



3 



4 



15 by 18 feet 



3 feet diameter 



a 15 inches by 18 inches 



6 small hole 



