PEALE.J 



UPPEK GEYSER BASIN GIANT GROUP. 



195 



year a temperature of 194° F. was obtained, which corresponds with 

 that obtained this year. It is difficult to get the temperature, as the 

 geyser is usually in violent agitation. 



Besides the springs on the platform of the Giant enumerated in the 

 table there are many vents (15 to 20 in all). 



TaMe of the Giant Group. 



'So. and name. 



Size and depth. 



Temperatures. 



5> 



Remarks. 



1. Giant. 



Cone 10 feet Wph, 24 

 by 25 feet at base, 

 5 'by 8 feet at top 

 orifice ; is about 5 

 feet in diameter; 25 

 feet deep. 



4. Young Faith- 

 foL 



o y. 

 198 at 13 feet below 

 level of platform; 194 

 at surface. 



177 at the surface; 



199 at 11 feet below 



the surface. 

 191 at the surface; 196 



at 9 feet below the 



top. 

 197 at the surface ; 200 



at 13 feet below the 



surface. 



11.15 a. m. 



6. Oblong Gey- 

 ser. 



Fissure 3i feet long. . 

 50 by 21 and 31 feet. 



Cone. 



195; 8 feet below the 

 surface the tempeia- 

 ature is 196. 



25 by 48 feet; 14 feet 

 deep. 



14 by 30 feet ; 9 feet 

 in depth. 

 16 by 17 feet 



a. Surface, 194 



b. 13 feet below the 

 surface, 175. 



Surface, 186; 8 feet be- 

 low surface, 195. 

 198 



For complete descrip- 

 tion see text follow- 

 ing the table. 



> Depressed craters. 



Spouts every few min- 

 utes, throwing the 

 water in spurts to 

 5 or 10 feet. 



On a platform of gey- 

 serite near t he 

 river. 



This small cone has 

 several op o n i n g s 

 and 2 other cones 

 near it. 



a is a bulger. 



6 is a pooL 



Inty- tinted boiling 



pool. 

 Constant boiler. 



No. 1. Giant Geyser (Plate XYI). — The Giant was named in 1870 by 

 the Washburn party, N. P. Langford first publishing the name in 

 Scribner's Monthly, in 1871. Although rarely seen in action it well de- 

 serves its name. It is readily recognized from its peculiar crater, which 

 has been compared to a broken horn, but, as Stanley* says, it is more like 

 the stump of a hollow sycamore tree of gigantic proportions, the top of 

 which has been torn off by a storm. 



It swells out irregularly at the base, just like the roots of a huge tree ; the grayish 

 silica crust represents the bark of the sycamore, while the cavity is carved into nu- 

 merous little grooves, and stained with various minerals, giving it a dark coating, 

 reminding you of the decayed part of the inside of an old stump. 



This curious crater is broken down on one side, as though it had been 

 torn away during an eruption of more than ordinary force. On this side 

 one can look into the crater if he can manage to avoid the jets which 

 arc being continually spurted from it. 



The crater is dark-colored, lined with tawny-yellow, and rises 10 feet 

 above the platform. At the base it measures 24 feet by 25 feet, which 

 diminishes to 8 feet at the top. The platform, or terrace, on which it is 

 situated has a circumference of 342 yards, and rises four feet above the 

 general level. It is composed of laminae of geyserite, which are well 



•Rambles in Wonderland, p. 114. 



