294 GEOLOGY AND GOLD DEPOSITS OF THE CRIPPLE CREEK DISTRICT. 
LODE SYSTEMS. 
The Chance lode passes close to the Anchoria-Leland shaft, with a general 
strike of N. 30° E. The lode is curved, however, the strike in different portions 
ranging from N. 15° E. to northeast. The dip also is variable, ranging from vertical 
southwest of the shaft to 80° in the Jefferson mine. The Chance lode has been 
explored for a length of over 1,200 feet. The Matoa lode is from 300 to 400 feet 
southeast of the Chance, and strikes N. 25° E. It is a complex and irregular lode 
of varying dip. In the Anchoria-Leland ground it meets the Potter lode, which 
strikes N. 55°-65° E. and dips north. In the region of intersection the two lodes 
lose their identity in a plexus of irregular fissures. The Matoa lode has been explored 
to a length of about 500 feet and the Potter lode for nearly 200 feet. About 200 
feet northwest of the Chance lode is the City View lode, which in part coincides 
with the City View “basalt” dike and has a general northeast strike. The iode 
dips north, but exhibits considerable irregularity. The workings on the City View 
are unsystematic, disconnected, and in part inaccessible, so that it was impracti¬ 
cable to verify an impression gained at the time of visit, namely, that the name 
City View had been applied to different fissure zones in different parts of the work¬ 
ings. Between 300 and 400 feet northwest of the City View dike is the Wardel 
lode, which strikes N. 60° E. and dips about 85° NW. The Maloney lode inter¬ 
sects the Chance lode from 100 to 200 feet northeast of the Anchoria-Leland shaft. 
It strikes N. 30° W. and dips 80° NE. from the surface to level 3. Below level 3 it 
either changes its dip or is replaced by a rather indistinct sheeted zone with a north¬ 
westerly dip of 70°. The Maloney lode is not known northwest of the Chance lode. 
A long drift has been run in this direction on level 2, but the fissure followed con¬ 
tains no ore and dips southwest instead of northeast. The Maloney and Potter 
lodes cross withoift any appreciable faulting, the Maloney continuing through the 
Lexington mine into the E. Porter Gold King mine. 
Some of the best-defined and most persistent fissures in these mines contain no 
ore. A good example of this is the so-called Fault vein, which has a curved but 
generally northwest strike and dips from 55° to 70° SW. This crosses the City 
View and Chance lodes near the Jefferson line and the Matoa lode near the Half 
Moon line, continuing south past the Tipton shaft. It slightly displaces the City 
View dike and possibly also the Chance and Matoa lodes. The displacement, how¬ 
ever, probably nowhere exceeds 5 or 6 feet. The Fault vein is a sheeted zone, one 
or more of the fissures usually containing a few inches of soft decomposed or crushed 
breccia. This gouge material contains a little pyrite, but no ore. 
Another barren fissure zone is the Iron vein. This strikes a little west of 
north and dips east. It is exposed on several levels northwest of the Anchoria- 
Leland shaft and crosses the City View lode without perceptible faulting. 
The general relations of these fissures to one another are shown in fig. 25. 
CHARACTER OF ORE. 
All of the ore from these mines has come from the zone of complete or partial 
oxidation. No ore was visible at the time of visit. It appears to have consisted 
originally of calaverite, with quartz and fluorite, and to have been largely altered 
to free gold. 
