184 EEPORT UNITED STATES GEOLOGICAL SURVEY. 



Between the springs 8, 9 and 10 and the river are three crater -like 

 holes in the dejiosit, at the bottom of which there is a little water. 

 These holes are about 8 feet in diameter. 



The springs already described are either on the mound of which ISTo. 1 

 is the center or on its slopes. Those next to be described are mostly 

 on a broad flat nearer the level of the river. 



j^o. 11 is probably a geyser, although not seen in action by any one as 

 far as I can learn. It has a greenish-gray-brown basin, 22 feet in diame- 

 ter, in the center of which is a deep cavern-like pool 9 feet in diame- 

 ter, over which the water has a bluish-green tint. It boils gently and 

 has a temperature of 174° F. The rim is gray and composed of hard 

 geyserite. 



No. 12 and 13 do not deserve any mention further than that given in 

 the table. Near them are other small holes not numbered on the map, 

 but none deserve special mention. 



No. 14 is a greenish hole 10 by 15 feet, at the head of a large, irregular- 

 shaped, shallow, red basin over which the water spreads. The latter 

 has a rim, and is one of two pools, besides which there are several small 

 holes. The temperature of No. 14 is 105^ F. 



No. 15 is a basin with two orifices, one of which is red lined and the 

 other white, the former having a temperature of 150° F. 



No. 10 is simply a reservoir for water from No. 14. Between it and 

 No. 15 there are numerous small openings, as indicated on the map. 



No. 17 belongs to same system as 14-10. 



No. 20 has a red, gelatinous deposit, probably viandite. This deposit 

 is found abundantly at various points among these S])rings. 



Nos. 23 to 26 are situated near the river, on the left bank, above the 

 bend, where the valley is narrowing, and are sufficiently described in 

 the table. There are others still above not indicated on the map. 



Crossing the river we first met No. 28, which is the upper or most 

 southern spring of the group. 



No. 28 is a very handsome blue cavern 25 feet in diameter, and back 

 of it a smaller (5 feet diameter) black, boiling spring [a], from which 

 the water flows into No. 28. The water escapes from beneath porch- 

 like masses of deposit and opens directly into the spring below. The 

 temi)erature is 197°, while in No. 28 it is 183°. The latter therefore 

 is in part at least a reservoir, as is the case with so many of the larger 

 basins. 



No. 29 is nearer the river than 28 and has a gray-white basin with a 

 white edge. It is a deej), blue cavern, 25 by 28 feet, and has at one end 

 a deeper hole, which is the spring, and where the temperature is 195° F. 



No. 30 is in a pit-like hole 15 to 20 feet deep. The water has a green- 

 ish tint, is quiet, and has a temperature of 178° F. The basin is 40 by 

 50 feet and deep. 



No. 31. Pebble Spring. — This is a spouting spring, and has a flat basin 

 6 feet in diameter, which is filled with reddish-brown geyserite pebbles. 

 The water spouts from a hole about 3 inches in diameter, and when seen 

 in action si^outed from 6 inches to a foot. The temperature was 191° F. 



Nos. 32 and 33 are described in the table. No. 32 is probably the 

 Catfish Geyser illustrated on page 112, in the report for 1871. 



No. 34 represents several white-lined holes, which extend under the 

 bed of a small, warm creek. The temperature is 171° F. 



No. 35 is a bulging spring at the foot of a bluif of gray deposit, which 

 is stained with iron and perforated by steam vents. The steam escapes 

 from the water in great bubbles. The temperature is 195° F. 



No. 38 is a geyser with a circular basin about 30 feet diameter. It is 



