DENVER & RIO GRANDE WESTERN ROUTE. ° 109 
tion of supplies while he has been driving tunnels in search of ore; 
which has carried lumber and other material for building mine 
works and even heavy machinery up the steep mountain trails. 
MAIN LINE OF RAILROAD FROM MALTA TO GRAND 
JUNCTION. 
Soda Springs and Evergreen Lake, two resorts of local interest, 
are 23 miles west of Malta. Evergreen Lake is said to be very attrac- 
tive, and Soda Springs is much visited by those who hope to be bene- 
fited by the use of the waters. 
A little north of Malta, at the crossing of a strong stream from the 
east known as the East Fork of the Arkansas, the north end of the 
Leadville loop connects with the main line. The East Fork heads in 
the Mosquito Range, on the Continental Divide, northeast of Lead- 
ville. The pass between the head of this stream and Tenmile Creek, 
the head stream of Blue River, has been named Fremont Pass, on the 
supposition that Frémont crossed the range at this place in his ex- 
pedition of 1845, bps the “ Pathfinder ” probably crossed at Tennes- 
see Pass. 
in the rocks from the surface has not 
Ascending from great depth or by 
The ores are generally most abundant 
beneath the layers or “sills ”of por- 
detect. Geologie work in the district 
has shown that the ores were deposited 
after the intrusion of the gray por- 
rede into the limestone and before 
the rocks were broken by the faults 
shown in f Aft 
and the ores were brought within the 
zone of weathering by surface waters. 
When the sulphides were thus ex- 
a 
se pink surface waters in a rather 
narrow zone, which has yielded most 
e ores mined up to the present 
time. The extreme richness of the sil- 
ver ore mined when the camp was at 
the zenith of its fame was due to = 
great increase in the value of the zine 
in 1915 was due both to an increase in 
the production of ore and to a great 
inerease in the pri 
Thi 
working 0 
ore that had been thrown away in the 
earlier and more prodigal exploration 
of the ore bodies. It is perhaps for- 
tunate that zinc was so nearly worth- 
less in the early days, for that led to 
its conservation until the World War, 
when the demand for it was unprece- 
dented. 
