(4) Leo Bedford’s hydraulic pit on the west side of Devils Lake Creek, where, in 1946, a 6- to 8-foot fault-zone was exposed. (5) Through two long, straight topographic depressions extending southward from the angle of Devils Lake Creek through the western part of Lot 10448c. These depressions were observed in several places on the ground and are particularly noticeable in vertical aerial photographs of that section. (6) The fault is assumed to extend southward along the course of Perkins Creek near the north-west corner of Lot 10743c. (7) Through Grub Gulch hydraulic pit, where a wide fault-zone was exposed during the course of operations in 1945 and 1946. (8) Along Grub Gulch to the diversion-dam 800 feet below the upper Grub Gulch ditch, where strands of it were exposed in the autumn of 1946 when the footings of the new dam were being dug. Small north-westerly striking faults exposed in the Estman hydraulic pit on the upper part of Perkins Creek in the north-west corner of Lot 10734c may be branches running off from the main fault. A third major fault called the Butcher Bench-Burns Creek fault is assumed to run southward from the point where the Jack of Clubs flume crosses Burns Creek to the western end of Butcher Bench. The dip of the fault is unknown, and its direction and amount of displacement are not determinable with any degree of certainty. If, how- ever, the caleareous beds by the flume crossing of Burns Creek correspond to the horizon of the limestone-beds at the west end of the Ketch pit, the indicated displace- ment would be to the right and of the order of 2,500 feet. The fault is projected from the flume crossing of Burns Creek, where dissimilar rocks outcrop on the two sides of the creek through a long stretch of ground covered by overburden to a 5-foot fault-zone exposed in the western end of Butcher Bench. No evidence of the fault could be found in the heavily drift-covered tract between the two occurrences. | Small north-easterly trending faults exposed on Butcher Bench are evidently small branch strands of the main fault. The projection of the fault northward from Burns Creek lies less than 500 feet east of the portal of the Bridge Island Gold Company’s adit on upper Coulter Creek. A strong fault striking about 10 degrees west of north and dipping 50 to 70 degrees east is exposed underground in the Foster Ledge adit on Lot 8897. This fault is expressed on the surface by a straight, prominent steep-sided gully about 1,000 feet long that coincides with the trace of the fault. The Foster Ledge upper adit exposes a normal fault striking about 10 degrees east of north, almost parallel to the formation, and dipping 50 degrees east. The lateral displacement of the veins exposed in the adit indicates that the hanging-wall side has moved downward about 20 feet (see section on Fig. 6). A strong topographic break trending about 10 degrees east of north and extending southward from the Public Works camp and to the east of Eric Rask’s small hydraulic pit at the summit of Devils Lake Creek may follow a fault, but no geologic evidence is available to substantiate this assumption. Rocks are well exposed along Devils Lake Creek between the Public Works camp and Hong’s siphon. The sections exposed along the two sides of the creek do not correspond, despite the fact that attitudes on both sides are alike. This discrepancy might indicate the presence of a fault trending slightly north of east, but confirmatory evidence is lacking. A north-easterly striking fault that dips 70 degrees to the north-west is indicated by 2 feet of gouge exposed on the north side of Spruce Canyon. The extension of the fault may be on Van Winkle Creek about 250 feet north of the intake of the lower Grub Gulch ditch. Other north-easterly striking faults are exposed in Dunbar Flat 23