Tower Resources Ltd. announced that assays received from Hole 41 on its new Thunder Zone gold discovery at the Company's Rabbit North property near Kamloops, British Columbia, between New Gold's New Afton underground Cu-Au mine and Teck's Highland Valley open pit Cu-Mo mine, have revealed two closely spaced, 13.25 and 10.12 m intercepts containing 3.28 and 2.19 g/t Au, respectively. Hole 41 also intersected a new and potentially robust zone of porphyry-style Cu-Au±Mo mineralization ­ the "Rainbow Zone" ­ beneath the cover basalt flows immediately southwest of the Thunder Zone. The Thunder Zone intersections in Hole 041 are approximately 200 m southeast along strike from the initial, 25.7 m intersection of 2.04 g/t in Hole 039.

Both holes were drilled at a flat, -45° dip and intersected the Thunder Zone at a depth of ~100 m below surface. Both were collared on cover basalts 20 to 30 m thick but the gold zone must surface somewhere between the holes in order to have produced the till-hosted gold grain dispersal train (Central Train; see Fig. 2) that led to its discovery.

The two high-grade, 3.28 and 2.19 g/t Au intercepts in Hole 041 occur between 124.75 and 157.0 m down- hole. They are separated by 10.0 m of weaker mineralization grading 0.35 g/t Au. The Rainbow Zone was intersected over a distance of 36.0 m between 72.5 and 108.5 m down-hole and thus is only 16.25 m from the Thunder Zone.

It appears to have originally extended to surface but is capped by 13 m (vertical thickness) of brick red to rusty orange saprolite and saprock from which most of the primary mineralization was leached by post-Jurassic subtropical weathering. The preserved 36.0 m section of the Rainbow Zone averages 0.19% Cu and 0.33 g/t Au ­ grades that are only marginally below those of some of the open pit porphyry mines in BC. Moreover, Hole 41 appears to have only clipped the eastern edge of the zone because Hole 042 which was drilled beneath it from the same pad but at a steeper -65° dip appears to have intersected the zone over a longer interval with visibly more chalcopyrite.

The central 16.5 m of the 36.5 m intersection of the Rainbow Zone contains 0.004% Mo in addition to Cu and Au. Molybdenum is not present in any of the historical porphyry Cu-Au occurrences on the property but occurs at economic concentrations (0.008%) in the large Highland Valley Cu deposit to the west. The presence of Mo tends be a vector to higher grade mineralization because it occurs centrally in porphyry systems.