The Dominion Project consists of a main block of claims that straddles upper Sulphur creek and Green gulch, and extends northward across Dominion creek (west of Lombard pup) into the headwaters of Hunker creek. The claims are accessible by road and located approximately an hour’s drive southeast of Dawson City.
The Dominion group of claims straddles a north-south trending thrust fault within the late Permian Klondike Schist. Chlorite rich schists and phyllites are dominant in the hanging wall of the thrust, and muscovite-rich quartzites with minor muscovite schist forms the footwall. Slivers of ultramafic rocks occur in the thrust fault planes, thought to be part of the late Paleozoic Slide Mountain terrane. Minor lenses of black graphitic schist are found within the Klondike Schist.
Small plugs and dykes of Eocene quartz-feldspar porphyry are locally present, including a 75 m wide quartz-eye rhyolitic dyke with a north-south trend that was exposed in the southern most trench at Hunker Summit. The Lloyd occurrence quartz vein strikes northwesterly, with a steep northeast dip. This vein is of white quartz with minor pyrite and galena containing rare visible gold. Quartz veins at Hunker Summit trend north-south and are reported to be in an en echelon pattern. This pattern may extend off the property to the northwest, where the north-south trending Sheba-Mitchell vein occurs.
Gold at the Brady occurrence near the confluence of Green Gulch and upper Sulphur Creek is found in an altered, rusty weathering pyritic chloritic schist that trends north-south.
Excavator pit sampling on the project was conducted in 28 locations during May 2012. Pits were dug with a rubber-tired backhoe alongside the Sulphur Creek road to a depth of approximately 2 to 3m, and outcropping rock was broken loose. C-horizon soil was collected as well as pieces of representative rock. One or more pieces of each lithology present, including quartz.
The rock sample results from the backhoe pits were generally low, with one sample below detection limit (0.5 ppb Au), and only three samples above 10 ppb Au. The highest value resulted in 71.2 ppb Au from a quartz vein found on surface. However, the closest pits to this sample were not anomalous. The highest rock value recovered from the pits was 59.3 ppb Au.
The soil results from each pit were higher on average than the rocks, with eleven samples above 10 ppb Au, and a maximum value of 39.3 ppb Au. The anomalous gold in soil samples form clusters of 2, 3 and 4 consecutive values above 10 ppb Au, which may indicated favourable zones of significant width.
Work on the Dominion claims and area dates to 1896 with the start of placer mining and exploration along the Sulphur Creek and Dominion Creek drainages, which continue to present date. Early work includes staking and sporadic development in the form of several exploration shafts and adits from 1900 to 1942. The most notable work was near Hunker Summit which included a 60 foot shaft and a 2600 foot tunnel.
The following is a list of the significant work completed on the project: