Warm Spring and II.. 



will. sulphureted I.; 



s the main minernl constituent.* Several of the- spring deposit consid 

 * calcareous tufa. In some pkees pure cold spring issue near the 

 springs, from similar oritices.f 



Such hot mineral spring can only be found upon a rocky 

 •unnin- any distance through loose deposits, they would cool, their gat 



lose their thermal character. For this reason we chiefly find such s] 



in Kobah Vallev, an underl vim: roekv stratum must be suspected. 





Wi 



Utah Lake. As they 



iscontinualimi of such 



XearK the whole 

 ed of horizontal a 



reek, and coverin 



rh— 



• laf, 



the shap 

 op, and ; 



number is very great if we count'all the small ones, and the diameter of the o 

 varies from a few inches to about 30 feet. .Most of them are now drv and filler 

 some extent with soil, while others contain more or less water, which is war 

 colder proportional to the quantity of the affluent. The more the deposits of the ; 

 have choked the supplvin- channels the less water can now out dining a certai 

 and the more heat it will lose on the way and on the surface, while the larger a 

 obstructed affluent will lose less heat in proportion. The temperature of tin 

 varies, therefore, between X0° and 109°.5 Fahrenheit, 

 visible affluent or outlet, but the temperature of the wat 

 indicate an affluent, and the exit must take place through crevices in the rock, and 

 makes the ground all around marshy. One of the most beautiful forms a basin :50 feet 

 long, 12 feet wide, and is feet deep, in which the water reaches to one foot and a half 

 below the rim. The northern -roup of springs is distinguished bv their high conic 

 shape with a comparativelv narrow base. ( hi the western plateau is the hi-hest spring- 

 its cone is about GO feet high, 100 feet wide on the top, and 200 feet at the base; its 



lie spi 



