Anderson-Davidson is composed of 627 contiguous quartz claims covering an area of 129.4 square kilometres near the community of Mayo, Yukon, Canada on NTS map sheet 105M. The claim group is nearly 30 kilometres long covering the highlands south of Mayo Lake where several placer operations actively recover gold from creeks draining into Mayo Lake, Mayo River or Janet Lake.
Access to Anderson-Davidson is provided by a seasonal road connecting placer operations on Davidson Creek to Yukon’s highway network. A pre-existing, four-wheel drive track runs east-west through the center of the claim group, connecting Williamson Lake to the Davidson Creek placer operations.
The area has been subjected to multiple glaciations. The youngest Pleistocene glaciation, was confined to the valleys occupied by Mayo, Janet and Williamson lakes. Westward moving fast-flowing ice scoured the bottoms and sides of these major valleys. The upper limit of this young glaciation is marked by lateral moraines and kame terraces at moderate elevations on the claim group. Although the uplands were covered by glacier ice during an older glaciations, the weathered rock, slope deposits and glacial till have been displaced minimally by the glaciers because of its thinnest and gold base.
Anderson-Davidson is underlain by phyllites, schists and carbonates of the Hyland Group metasediments, occasionally intruded by felsic dykes. Most stratigraphy has bedding parallel or sub-parallel to foliation, which dips shallowly and generally southeast except where modified by small scale isoclinal folding. Outcrop is sparse on the property, rarely exceeding 5 per cent in any area.
There is a long history of placer mining at Anderson-Davidson. Though records of placer production are sparse and unreliable, production from Steep, Owl, Anderson, and Davidson Creeks has been in excess of 10,000 ounces since the early 2000s.
MLM has delineated numerous geochemical anomalies during its sampling programs (Figures 3, 8 and 9), most notably the Anderson Gold Trend, a 10-kilometre-long NW oriented zone of elevated and anomalous Au-As-Sb values. Within this trend are several distinct gold anomalies oblique to the strike of the trend. Many geochemical targets remain to be tested on the property both within and outside of the Anderson Gold Trend. Three distinct drill targets exist within the Anderson Gold Trend with sections containing greater than 100 ppb Au in soils for lengths in excess of hundreds of meters with analysis up to 500 ppb (Figures 10, 11 and 12).
The Owl-Anderson target has been delineated by gold in soils for a distance of 2km. It corresponds to a geophysical feature, which extends for a total length of 4km. At Steep and Peak creeks, gold targets have been delineated by geochemistry that extend over hundreds of meters and are open in multiple directions.
Test pits from the Owl-Anderson target yielded a grab samples with up to 3.5 g Au/t. Follow up soil sampling has determined that there are several parallel anomalies in close proximity to the initial anomalous zone.
In 2017 MLM drill several scout RC holes to confirm the bedrock source for gold in soil anomalies. Two holes confirmed the presence of a major structure by intersecting mineralization at the bedrock interface. Due to both holes intersecting the structure from surface the total width and grade of this structure remains unknown so reported intervals are minimum. Assays yielded 0.8g Au/t over 6.1m within a broad zone of 0.35g Au/t over 17m (Figure 13). Quartz sulphide vein structures contain significant Au+As+Sb+Hg within abundant subnite-aersenopyrite-pyrite mineralization; they were associated with quartz veins and silia-cemented breccias. The alpha structure was traceable over a distance of 50 metres plus.
There are immediate plans to drill the Anderson-Owl gold occurrence in order to determine its full width, the nature of its mineralization and its gold content; to drill test the other known gold in soil anomalies within the Anderson Gold Trend (Figures 10, 11 and 12); and to locate other gold in soil anomalies within the Trend that merit drill testing. Other prospective areas are present at Anderson-Davidson that merit further exploration, specifically in the vicinity of the Davidson Creek placer operations (Figure 9).
Figure 8. Significant gold trends and anomalies on Anderson-Davidson.
Figure 9. Geochemical highlights from sampling of soils and stream sediments on Davidson Creek.
Figure 10. Owl-Anderson gold anomaly.
Figure 11. Steep Creek gold anomaly.
Figure 12. Peak gold anomaly.
Figure 13. Drill logs showing gold assays on Section 1 at Owl-Anderson gold occurrence.