Tower Resources Ltd. report that it's September gold grain sampling up Arrow Creek on the Company's More Creek property in British Columbia's prolific Golden Triangle has pinned down the source of a historical gold anomaly straddling the Red Line rift structure with which the world-class epithermal Au and porphyry Cu-Au deposits of the Triangle are closely associated. Historically, exploration in the area of Tower's 6430 hectare More Creek property has focused on the Sinter Zone, a siliceous epithermal alteration zone that is strongly anomalous in Hg (mercury) but not in gold. However, Tower's main interest in acquiring the property in 2016 was a high, 1.6 g g/t Au assay reported in 1990 from a single gravel sample collected at the mouth of Arrow Creek on the northern edge of the property.

The anomaly was obtained from a pan concentrate, suggesting that the gravel contained physical gold grains. Arrow Creek is fed by a receding valley glacier on the high southern part of the property and flows northward across the property for 3 km to its junction with More Creek where the anomalous sample was collected. The valley of Arrow Creek traces the Triassic Pass Fault, part of the critical Red Line rift zone between Late Triassic and Early Jurassic volcanic rocks to which most of the epithermal Au and porphyry Cu-Au mines of the Golden Triangle are closely related, including the world-class Eskay Creek, Brucejack and Red Chris deposits.

As the number of trapped gold grains depends on the efficiency of the trap, the anomaly strength is rather erratic, ranging between 22 and 149 grains with one lower value of 7 grains. Duplicate samples 07 and 08 at the foot of the landslide yielded the second higher gold values of 58 and 61 grains, respectively. Due to the creek's high flow rate only the largest, sand-sized gold grains that typically comprise about 5% of the transported grains in a stream are settling in the gravel traps; the other 95%, being silt-sized, are carried far downstream.

Therefore the gold grain anomaly in the creek is actually much stronger than indicated by the limited number of trapped grains.