TOURTELOTTE PARK. 175 
and cuts the Justice fault, crossing from brown dolomite to Weber shale. 
The dip of the fault here is about 65 or 70 degrees northwest, and it has a 
northeast trend. Along it the shales have been bent and broken. 
Good Thunder mine—There are two shafts on the Good Thunder claim, called 
the upper and the lower shafts. Both start in porphyry and go down across 
a thin belt of shale, through the Silver fault and the blue limestone, to the 
Contact fault. The ore occurs almost exactly as described in the Edison 
No. 1 and the Celeste, in shoots along the Contact fault, between the blue 
limestone and the dolomite, and is of the same nature, being all oxidized 
and containing much barite. There is also some ore in the dolomite in 
small slips which are apparently parallel to the main Contact fault. 
Little Lottiemine——The Little Lottie mine is situated close to the Good 
Thunder and Celeste, and a little farther south. The workings are not 
very extensive, but considerable ore has been taken out. The first horizon 
from which ore was taken was the Contact fault, between the blue lime- 
stone and the dolomite; but subsequently the Silver fault, between the shale 
and the blue limestone, was explored, and considerable ore was found. A 
short distance southwest of the Little Lottie shaft is a tunnel which runs in 
a southerly direction, starting in the Weber shales and crossing the Silver 
fault into the blue limestone. The Silver fault in this tunnel is marked by 
a breccia 10 or 15 feet thick, which is underlain by a soft gray sand con. 
sisting of separate grains of dolomite. The limestone along the fault has 
been somewhat mineralized, showing often considerable barite, and some 
ore has been stoped out both in the limestone and in the shale. 
Justice mine —There are two shafts on the Justice claim, the northern or 
lower shaft and the southern or upper one. The lower shaft starts on the 
east side of the Justice fault and goes down through porphyry till it cuts 
the fault, which here has an easterly dip. There are some bunches of ore 
found in the fault, but they appear to be earlier in age than the fault itself, 
and to have been dragged in by fault movement. The upper shaft is deeper 
than the lower, being about 400 feet deep. Accounts of the formations 
which this shaft passed through are conflicting, but after the evidence is 
sifted it appears probable that there was no porphyry in the shaft, but that 
it started directly in shale after passing through glacial drift. The bottom 
is in the Contact fault. From the shaft an incline runs off to the northwest 
along the fault, which dips about 40 degrees. At intervals along this incline 
