TOURTELOTTE PARK SPECIAL MAP. 113 
but since the fault against which it is represented as stopping has a 
southerly dip, this fault and the Justice fault with it enter the section at 
some distance below, as represented, and continue indefinitely downward. 
The general structure is that of a westerly dipping monocline, with 
some slight trace of the gentle foldigs which were observed in the section 
farther north on the east side of the hill. The granite outcrops in its natural 
position below the quartzite until cut off by the Ontario fault, which has 
its normal downthrow to the east, and brings the bottom of the Silurian 
dolomite against the granite. The beds at this point lie nearly flat, and 
possibly have a very slight westerly dip, so that on going down the hill 
the edges of the dolomite and underlying quartzite are passed over to the 
granite. In this section the diorite sheet is thicker than in the sections 
farther north, and lies only a short distance below the Parting Quartzite. 
Section E—West of the Castle Creek fault the beds have in this section 
definitely resumed their normal position, and dip steeply to the west. East 
of the Maroon formation nearly the whole Weber formation outcrops, and 
it is probable that below this line porphyry, blue limestone, and the rest of 
the usual succession occur. 
East of the fault there lies, as in the preceding section, the Cambrian 
quartzite, which has a gentle westerly dip. This dip being considerably 
less than the slope of the hill, the Silurian dolomite comes in above the 
quartzite a short distance up. The first fault encountered runs north and 
south and has a slight downthrow to the east. This is probably the Saddle 
Rock fault. East of the Saddle Rock fault there intersect the plane of the 
section a number of the southerly dipping east-west faults which have been 
previously mentioned, and which, on account of their trend being nearly 
parallel with the trend of the section, intersect the section plane in a nearly 
horizontal line. 
As in the previous section, the general structure is that of the westerly 
dipping monocline, with some slight indication of a tendency toward the old 
anticlinal structure near the top of the hill. Where the strata successively 
outcrop on the west side of the hill, however, they have still a slight west- 
erly dip. Granite outcrops a short distance down the hill, as far as the 
Ontario fault, when the downthrow of this fault brings in the Silurian dolo- 
mite to the east. Passing down the hill, however, one goes across the edge 
of the Cambian quartzite to granite, which continues to the end of the section. 
MON XXXI——8 
