TOURTELOTTE PARK. 171 
the bottom of the shaft a rich bed of ore was found, which was, however, 
comparatively small, turning out $65,000. 
Dixon shaft—This shaft, which is about 270 feet deep, runs through 
porphyry and the Weber shales to the Silver fault. Below the Silver 
fault dolomite was reported, which probably resulted from secondary 
dolomization accompanying ore deposition. Drifts from the shaft cut the 
blue Leadville limestone in its normal place below the fault. The main 
drift runs slightly south of west and cuts the Dixon fault, which has a 
slight downthrow on the south side, as shown on the map and in the 
sections. There has been some mineralization in this mine along the 
Contact fault, but there seems not to have been any large amount of 
pay ore found. 
Mayflower tunnel— [he Mayflower tunnel is situated on the west side of 
Tourtelotte Park, on the slope of the hill toward Castle Creek. It is one 
of the tunnels which cut the formation where it has an easterly dip, on the 
western limb: of the Aspen Mountain syncline. It starts in dolomite and 
runs east about 240 feet to blue limestone, the contact between the two 
formations being very sharp. After about 100 feet of blue limestone there 
comes a heavy breccia of shale and altered limestone, with occasional 
porphyry fragments. This is probably the Silver fault. In this breccia 
there are some very good seams of ore, especially one at the contact of the 
breccia with the hard limestone below, which is here locally dolomized. 
San Jacinto shaft— This shaft cuts the western limb of the Aspen Mountain 
syncline, starting in porphyry and crossing the shale into the Silver fault, 
then passing through the blue limestone into the Contact fault, and thence 
for some distance into the dolomite. The only ore found in the workings 
was some lead ore on the Contact slip. 
Sam Houston shaft The Sam Houston starts not far from the San Jacinto, 
and, like it, in porphyry. From the porphyry it passes through shale to 
blue limestone on the under side of the Silver fault. Some ore was found 
in the blue limestone, about 15 feet below this fault. 
Saddle Rock shafts —T'here are two shafts on the Saddle Rock property, one 
of which lies near the Sam Houston. This shaft shows essentially the 
same conditions as the Sam Houston, except that it passes through a 
larger body of porphyry. After the porphyry, it goes through shale and 
limestone into the dolomite. There seem to have been two ore-bearing 
