The Timber area is underlain by a sequence of folded and faulted upper Triassic andesitic volcanic and clastic sedimentary rock units of the Stuhini Group. The sequences of clastic layered rocks consist of volcanic wackes, andesitic flows, and argillite interbeds.

Geological grid mapping over the Timber zone has identified a recognized a diorite intrusive which measures at least 800 by 1100 metres in size. Quartz stringers (both mineralized and unmineralized) occur randomly throughout the intrusive.

Follow-up prospecting and geological mapping of 1988 and 1990 gold soil geochemistry anomalies identified numerous auriferous quartz and pyrite stringers and veins varying in size from 2 to 30 centimetres in width. Assays of individual veins range up to 92.78 grams per tonne (Assessment Report 20656).

Known quartz veins are generally narrow although in several instances more than one may be present in any specific location. As well, the main linear which trends northeast may well be a mineralizing conduit for gold bearing solutions. Quartz veins and soil samples along this structure both produce highly anomalous gold values.

During programs carried out in 1987 and 1988 by Hector Resources Inc, contour soil sampling traverses identified several areas anomalous in gold values on the Stu 4 mineral claim between elevations of 200 to 500 metres above sea level. For the 1990 field season, a cut-line grid was established over this area to allow for geological, geochemical and geophysical control to assess these soil geochemical anomalies. A total of 11.4 line-kilometres of grid lines were established with a baseline orientated at a bearing of 300" and crosslines run perpendicular to this at 50 and 100 metre intervals.

Refer to Golden Spray (104B 208) for a detailed discussion of work by Hector Resources on the Stu and Sky claims.