158 EEPORT UNITED STATES GEOLOGICAL SURVEY. 



terval nor height of its column. Balls of geyserite are. found in a fissure 

 close by, and there is a second smaller cone and a pool. 



Springs Nos. 13 to 18 are situated on a flat north of the main Hot Lake. 

 Eastward from this flat there extends a valley which has a deposit of 

 broken fragments of geyserite, which is overgrown with pines. A ridge 

 separates this valley from the ravine in which the springs already de- 

 scribed are situated, and another ridge separates the western end from 

 the Mud Puffs. Most of the springs in this cluster have sulphur in their 

 basins. 



No. 13 is a leathery-lined spring or pool 30 by 10 feet. In the grass 

 above it are several red springs, the principal one of which (No. 14) has 

 two bubbling basins which give off sulphureted hydrogen, and in which 

 the water has a temperature of 127° F. Still farther above is No. 15, a 

 gray-lined sulphur spring with a high temperature (197° F.). Between 

 this spring and the lake are sulphur-coated spots, 



No. 16 is a handsome spring of bluish-green tinted water in a sulphur- 

 lined basin of 15 feet diameter. There is an outer basin which measures 

 30 by 35 feet, and beyond this the water reaches to a distance of 6 or 8 

 feet on a brown-coated area. The spring has a white rim, and the out- 

 let is coated with iron oxide. Sulphureted hydrogen is given off', and 

 the area outside the spring has sulphur holes in it- The water bubbles 

 slightly and has a temperature of 151° F. 



In the grass surrounding these springs there are others, and in the 

 timber back of them are several with hard, mound-like basins. 



The springs next described are east of the Steady Geyser, and are in- 

 cluded under Nos. 19 to 27. Nos. 19 and 20 are not shown on the map. 

 They are two small hot streams coming out of a hard deposit without 

 basins, and flowing into a red basin in marshy ground The rest of these 

 springs are suflaciently described in the table. 



Steady Geyser. — This geyser was named in 1871 from the constant ac- 

 tion of the column. It is close to the edge of the small lake which is 

 just east of the main Hot Lake. The water is projected with rather 

 steady force in an oblique direction from the side of an irregular mass 

 of deposit that forms a mound a couple of feet in height. The deposits 

 are not remarkable either for beauty or quantity. Most of the water 

 falls into the small Hot Lake. There is no well-defined column of water, 

 but an irregular, splashing mass that appears to be pushed out with 

 great violence. A great quantity of steam accompanies it, and the ex- 

 treme height attained is not over 30 feet. Usually the height is from 

 10 to 15 feet. It was impossible to take the temperature of the water, 

 but in the idooI just south of the geyser a temperature of 195° F.was ob- 

 tained. In the lake the temperature was 142° F. The latter drains into 

 the large lake. Just south of the Steady Geyser is a small spouter which 

 appears to be in constant action. 



Back of the geyser are a number of pools and springs, some of which 

 are on the drainage lines that come from tlie lake near which Young 

 Hopeful Geyser is located. These springs, as well as those near the 

 la]5;e just south of the Ste^y Geyser, are suflSciently described in the 

 table. 



Young Ropefid Geysei: — This small geyser was so named by Professor 

 Bradley in 1872, and appears to be a constantly acting geyser. It is 

 near the edge of the Upper Lake, and has a flat basin, lined with nodu- 

 lar masses of deposit, which is brilliantly colored, orange, yellow, and 

 cream colors being mixed with the white. The central orifice is about 

 2 b^^ 3 feet. The temperature is 175° F. The spouting is rather irreg- 

 ular. When I saw it it appeared to be continuous. Professor Bradley 



