192 THE MOUNTAIN. 



flow of bitumen, covering the soil twenty feet around with a 

 depth of two feet." " COOK'S SPRING, at foot of Picacho, is 

 a pool of sulphur water forty feet wide." 



Aqua Caliente is a spring of remarkably warm water, its 

 temperature being 130 F. The water is full of carbonic 

 acid gas bubbles, and flows from the spring in a large body, 

 depositing quantities of lime. According to Parke, "were 

 it situated within the limits of civilization, it might be made 

 invaluable for medical and economical uses." "The water 

 at Vallicitas is hard and sulphureous." Other waters in 

 this region are noticed, which contain mineral substances, as 

 in the valley of Mimbres River, and neighborhood of San 

 Diego and Fort Yuma. 



