Rocky Mountains. 291 



ever deposites, as it comes in contact with the air, a copious 

 sediment which has gradually accumulated until it has be- 

 come an independent rock formation of considerable extent. 

 This rock appears to consist of flint, lime, and a little oxide 

 of iron. It is often of a porous or vessicular texture, and 



Temperature in Spring-, No. 1. being- the lowermost on Ihe creek, 122°. 

 Water discharged; 4 gallons per minute. 

 " No. 2. A few feet from No. 1. 104", discharging 



1 gallon per minute. 



<' No. 3. Twenty-five yards from the last, 106", dis- 



charging 2 gallons per minute. 

 *' No. 4. Six yards above the last, 126°, discharges 



2 gallons per miuute. 



" Of a spring issuing from the ground, at a conside- 



rable distance up the side of the hill, 64°. 



" Nos. 5, 6, and 7, 126°, 94", 92*^ These rise very near 



each other, the warmest being more elevated than 

 the rest. They discharge about 8 gallons per mi- 

 nute. 



" No. 8. Issuing from the ground, fifty feet above the 



level of the creek, uniting, as it rises with another, 

 at 54°. Temperature of the mixture, 128°. Dis- 

 charge of the two, ten gallons per minute. 



" No. 9. Rising in the point of a small spur, sixty 



feet above the level of the creek, 132°. Discharges 

 two gallons. 



" No. 10. Forty feet above the creek, 151°. Discharges 



ten gallons. Green bushes in the edge of this, 

 which is the hottest spring. 



" No. 11. Three feet above the Creek, 148°, dis- 



charging twelve gallons. 



" No. 12. Thirty yards above the last, 132°. Dis- 



charging twenty gallons. 



" Nos. 13, 14, 15, Near the last; 124, 119, 108°- Dis- 



charging 4 gallons each. 



«« No. 16. do 122°. Discharging 3 gallons, 



" No. 17. The uppermost on the creek, 126°. 



" Nos. 18. 126", 19, 128°, 20, 130", 21, ISB'*, 22, 



140°. 



All these are large springs, and rise at an elevation of at least one hun- 

 dred feet above the creek. In the same area are several others, and what 

 is more remarkable, several cold ones. In many of the hot springs I ob- 

 served bubbles rising in rapid succession, but could not discover any per- 

 ceptible smell from them. Not only confervas and other vegetables grow 

 in and about the hottest springs, but great numbers of little insects are 

 seen constantly spoiling about the bottom and sides. 



The entire quantity of water flowing in the Creek, after it receives the 

 water of the Hot Springs, may be estimated at from 900 to 1 000 gal- 

 lons per minute. 



