rsoME.] ASSOCIATED MINERAL WATERS. 1J3 
•unees of gold per ton, worth, at the then current price of silver, 
1,880. 
The ore of the Genesee- Vanderbilt was of much lower grade than 
it of the Yankee Girl, Guston, and Silver Bell. Its gross value for 
y one year probably never averaged more than $4=0 per ton. No 
sords, however, are available for the ore taken out prior to 1893, 
en the price of silver stood higher. The ore of the National 
lie was also low grade, but its average value is not known. 
MINERAL WATERS ASSOCIATED WITH THE ORE DEPOSITS. 
Probably all the waters met with in the mines of the Silverton 
adrangle now accessible are meteoric waters variously modified by 
■j materials though which they have passed in their more or less 
•ect descent from the surface. The abundance of these waters 
rics much in different mines, and fluctuates with the seasons. In 
■ Gold King mine scarcely a drop of water reaches the lower levels. 
my other mines, such as the Silver Peak ami Iowa, which are 
iderately wet in summer, become nearly dry in winter, owing to the 
ezingof the ground near the surface. In no case was any notice- 
lie spring or ascending mineralized water encountered in the ore 
posits now beingworked. Thedescenl of the meteoric waterthrough 
-ssesof pyrite and other ore minerals is, however, often sufficient 
give it a strong acid reaction and render ii highly ferruginous. 
n the Red Mountain distrid the troublesome acid character of the 
ne waters was notorious. En spite of their strong mineral nature 
:l abundance, however, it is not improbable that these, too, were 
iteorie waters which had become strongly charged with sulphuric 
d b}^ their oxidizing passage through the adjacent bodies of pyrite 
.1 through the masses of altered pyritized country rock which sur- 
md the latter. 
Itrongly ferruginous springs are abundant within the drainage of 
ment Creek and in the upper basin of Red Creek. As their waters 
j brought in contact with the atmosphere the iron in solution is 
dized and deposited near the spring as a mound or apron of limo- 
e, or accumulates as bog iron in the swampy ground along these 
eks. Such springs, with there accompany ing deposits, may be 
11 seen near Burro Bridge, also just below Chattanooga, and near 
! village of Red Mountain. A spring of the same general charac- 
issues from the hillside about 150 feet above the Guston mine, 
I has deposited a large apron of limonite. At present the water 
ues from a tunnel which w r as run into the limonite mass, and has 
aented the dump of the tunnel into a firm, ferruginous mass, 
ne of this water was collected for analysis. As it issues from the 
mel it is clear, moderately cold, and noneffervescing, and has an 
ringent acid taste. When received in the la boratory at Washington 
Bull. 182—01 8 
