This area was explored intensively by individual prospectors for gold veins in the 1930's. Staked as Low cl 9-49 (Y40124) in November 1969 by R. McKamey and optioned in December 1969 to Samson Mine Ltd. and Monarch Metal Mine Ltd., which conducted reconnaissance soil sampling.
Re-staked as the Ag cl 1-36 (Y75866) and Au cl 1-40 (Y75938) in July 1973 by E.D. Campbell and G.E. Smith and optioned to Prism Resources Ltd. and Dynasty Exploration Ltd., which carried out grid soil sampling, magnetic surveying and bulldozer trenching in 1974. Dynasty changed its name to Cyprus Anvil Mining Corp and conducted an IP survey in 1975 before dropping the option.
Re-staked as Seymour cl 1-44 (YA60053) in May 1981 by Arctic Red Resources Corp., which bulldozer trenched later in the year. Re-staked as Rag cl 1-24 (YA86809) in May 1985 and May cl 1 & 3 and Rag cl 25-26 (YA87057) in June 1985 by R. Granger and optioned to Durham Resources Ltd., which performed bulldozer trenching in 1985, geological mapping and geochemical sampling in 1986 and 1987, and bulldozer trenching in 1987. Durham changed its name to Dominion Explorers Inc. (Landmark Corp) in 1987. In 1988, the claims were optioned by Rea Gold Corp (60%) and Verdstone Gold Corp (40%), which drilled one hole (99.7 m) in 1988 before transferring the claims back to Granger in October 1989. G. Harris tied on Bar cl 1-38 (YA92884) to the north in August 1985.
The Rag 1-24 cl (YA86809) and 27-29 Frs. (YA93755) were transferred to B. Harris in December 1993, who subsequently carried out blast trenching and sampling. In December 1993, La Rock Mining Corp. entered into an option agreement to acquire 100% interest in 32 claims on the property. In December 1994, Harris and La Rock Mining filed assessment credit for 7,250 m3 of trenching on the Rag and Elephant claims. In 1996, La Rock filed for assessment credit using physical work (road building) carried out on the Best cl 1-6 (Y25895) and Hope cl 1-2 (Y21249) located 4 km to the south. La Rock carried out 950 m of bulldozer trenching, mapping and sampling of the trenches in 1997. The claims were subsequently allowed to lapse.
Northern Freegold Resources re-staked the Rage claims in 2006 and performed a property wide airborne magnetic and VTEM geophysical survey that included the Granger occurrence. In 2008, Northern Freegold Resources carried out diamond drilling of 10 holes totaling 2,559.6 m at the Granger occurrence.
Triumph Gold Corp. acquired Northern Freegold Resources in 2015 and the Granger occurrence is currently part of the Freegold Mountain Project.
Regional & Preperty Geology
The occurrence is partly underlain by Yukon-Tanana Terrane (YTT). The rocks of the YTT in this region consist of Early Mississippian metamorphic rocks separated into meta-sedimentary and meta-igneous suites. The meta-sedimentary suite consists of micaceous quartz-feldspar gneiss, schist and quartzite. The meta-igneous package is comprised of biotite-hornblende feldspar gneiss and coarse-grained granodiorite orthogneiss with lesser amphibolite (Allan & Friend, 2018).
The YTT basement rocks are cut by numerous plutonic and volcanic events from the Mesozoic (Allan & Friend, 2018; AR 090087), including:
1. Early Jurassic monzonite to syenite plutonic suites;
2. Mid-Cretaceous quartz feldspar and feldspar hornblende porphyry dykes and plugs;
3. Mid-Cretaceous Whitehorse quartz monzonite and granite; and,
4. Late Cretaceous Casino quartz monzonite;
The Granger occurrence consists of a shear zone and vein that cut Late Cretaceous Casino quartz monzonite and Mid-Cretaceous Whitehorse suite quartz monzonite and granite that intrude Paleozoic gneiss and schist (AR 092586).
Mineralization & Results
Gold occurs with minor chalcopyrite, pyrite and a trace of molybdenite occur in a steeply-dipping, northwest-trending shear zone about 8 m wide and in a narrow northwest-trending vein 2 m wide which lies 20 m further to the east (AR 092586). The structures lie within geochemical anomalies that returned values up to 370 ppb Au and 949 ppm As.
Highly oxidized vein float was located on the Rag claim group in 1985, a specimen of which assayed 44.2 g/t Au and 147.4 g/t Ag. The 1988 drill hole intersected 3.2 g/t Au over 2 m in a fractured tourmalinized quartz monzonite (AR 092586).
Trenching in 1997 targeted geochemical anomalies in the southeastern portion of the claim block and uncovered a limonitic breccia zone in granodiorite consisting of massive limonite and goethite cut by quartz-calcite veins in Trench 97-2. A 2 m chip sample averaged 3.5 g/t Au and 108 g/t Ag with elevated base metal values (AR 093746).
Diamond drilling carried out in 2008 returned elevated assay results of up to 620 ppb Au and 0.34% Cu over 10.7 m in hole 08ST-05. Mineralization was noted as subparallel quartz veins containing pyrite and chalcopyrite cutting granite (AR 095069).