426 GEOLOGY AND GOLD DEPOSITS OF THE CRIPPLE CREEK DISTRICT. 
production, which dates from 1896, amounts to nearly $4,000,000 up to January 1, 
1905. Dividends of $350,000 have been paid in the same time. 
Production of the Golden Cycle mine from 1902 to 1904., inclusive. 
Period. 
Amount. 
Gross 
Value. 
July 1, 1902-Dec. 31, 1902. 
Tons. 
18,751 
35,300 
22,479 
S408.220 
831,900 
400,194 
Jan. 1, 1903-Dec. 31, 1903 ... 
Jan. 1, 1904-Dec. 31, 1904 a .. 
a Mine was closed during May, June, July, and August, 1904. 
The main shaft is located on a bluff just north of the town of Goldfield, and 
the elevation of its collar is 10,066 feet, or 143 feet below the main shaft of the 
Vindicator. The shaft is 1,030 feet deep; level 3 is 276 feet below the collar, 
while the subsequent ones are respectively 400, 500, 600, 700, and 1,000 feet below 
the same datum. There are also two smaller shafts—the Anna, on the Harrison 
vein, and the La Bella, on the Revenue system. A tunnel with an elevation of * 
9,897 feet gives access to the upper workings. The total developments amount to 
several miles. 
The Theresa property consists of the claim of the same name, adjoining the 
Golden Cycle on the east, and was until recently worked in conjunction with the 
Golden Cycle. It is developed by a shaft situated 200 feet southeast of the main 
shaft of the Golden Cycle. The bottom level is the same as level 7 of the Golden 
Cycle, but the workings of level 8 of the latter mine have also been extended into 
Theresa ground. Four hundred feet north of the Theresa shaft is the Tateman 
shaft, which explores the upper part of the Revenue system down to an elevation 
of 9,927 feet. There is also a crosscut 700 feet long on level 5 of the Theresa shaft 
which opens the whole northern part of the claim up to the boundary underneath 
the Tateman shaft. The drifts and crosscuts on the Theresa amount to several 
thousand feet. 
The Gold Knob shaft was sunk 600 feet deep in the breccia 850 feet southwest 
of the Golden Cycle shaft and in the line of extension of the Legal Tender vein. 
The crosscuts are said to have thus far failed to develop any veins. 
The Golden Cycle connects with the Vindicator drainage basin. In June, 
1903, level 10 was kept dry by pumping 50 gallons a minute, most of which came 
from the Legal Tender system, while the Revenue veins are almost dry. The 
Vindicator was then pumping 210 gallons a minute. Later on, in March, 1904, 
pumping was discontinued in both mines and water rose to between levels 8 and 9. 
At the end of 1904 the Golden Cycle, the only mine then pumping, kept the water 
below level 10 by raising 300 gallons a minute. 
The mine is free from gas except a small amount occasionally occurring in the 
long crosscut southwest on level 9. 
GEOLOGICAL FEATURES. 
On the surface the shaft is situated in an oblong area of latite-phonolite, 
separated by a strip of breccia 200 feet wide from the Vindicator area of syenite, 
