140 EEPOET UNITED STATES GEOLOGICAL SUEVEY. 



collects and runs into into a ravine, on the sides of whicli Nos. 8, 9, 10, 

 11, and 12 are situated. Nos. 6, 7, and 8 are a short distance back of 9 

 and 10, on more level ground, while No. 13 is farther up the ravine, on 

 the left side, the same side with ]^o. 12, only farther back from the ravine, 

 and really on the plateau separating the two branches of the creek. 



l!^o. 6 is a clear spring, which gushes out from under a mass of conglom- 

 erate rock on the south side of the area which 1 have just described. 

 The spring is actually beneath the rock, and outside spreads out into a 

 red-lined pool measuring 3 by 8 feet. The temperature of the water as 

 it emerges from the rock is 190° F. The conglomerate contains frag- 

 ments of trachyte, and is a remnant of the lake deposits that once 

 spread over this area. 



ISTo. 13 is a deep hole, obstructed by wood. It is 3 by 5 feet and has 

 a white border. The water has a temperature of 172° F. I recognize 

 this as a spring which in 1871 had a temperature of 169° F. The walls 

 are very handsome in their ornamentation. In the ravine east of No. 13, 

 but higher up, is the spring with the highest temperature; it is No. 15, 

 and is on the east side of the gulch. It is a spouter, as is also its com- 

 panion, No. 14. It has a gray and yellow edge and a white-bordered 

 outlet. The temperature is 198Jo. 



No. 14 is perhaps the main geyser, and has a gray and blackish basin, 

 with a yellow scalloped rim. The orifice is 8 by I's inches. The water 

 rises and falls periodically and spurts to a few feet. The temperature 

 was 198° F. In 1871 the temperature recorded was 197° F. This dif- 

 ference is probably due to the difference in the thermometers used. 

 Practically the temperature is the same. Back of these two spouts are 

 a number of sizzling holes in the clay bank at the head of the small gulch, 

 and below them a small pool of standing water. 



Springs 20 to 23 are on the steep side of a hill on the east side of the 

 ravine. On the top of the hill there are two small spouting holes in the 

 rocks. They are not indicated on the map. 



Springs 24 to 30 form a cluster, the drainage of which unites before it 

 flows into the ravine. Only one. No. 30, has a high temperature (195° 

 F.), and is a bubbler. 



Nos. 31-33 are below the cluster of 24, &c., on the same side of the 

 stream, and drain into it below the jun^ction of the two branches. 



Nos. 34 and 35 have no outlets, and are nearer the bluff. 



Following along the foot of the hill, going east from 35, we soon come 

 to No. 30, which is a small spouting spring on the side of the hill. 

 Farther on are two quiet springs nearly extinct. Between them and 

 the river there is a great deal of timber, most of which is dead. Next 

 is No. 37, in a sort of hollow among rocks at the foot of a rocky slope. 

 It is a quiet, gray spring, with a temperature of 155° F. 



From No. 37 is some distance to the next cluster, the first indication 

 of which is met with in Nos. 38 and 39, two small, unimportant springs. 

 The main springs are in the gulch, some distance above the general 

 level. No. 40 is a spouter, and No. 41 has a temperature of 190° F. 

 Nos. 41, 43, and 44 are on the hard, geyserite mound with No. 40. In 

 the grass about these there are numerous springs not included in the 

 table, none, however, of any importance. Between them and 45, which 

 is an extinct spring, there are other holes, and in the flat below numer- 

 ous mudholes and pools are found. 



Nos. 46 to 51 are comparatively small holes on the side of the hill. 

 Most of the temperatures are high. 



Nos. 52-54 are at the foot of the bluff, in a group of stagnant pools 

 and holes of muddy water. There are other springs above these that 

 were not included in the table, from want of time for their examination. 



