The Woco Gold Prospect is located west of Uchi Lake at the south end of a series of historical gold mines (Uchi Mine) on a north-south trend. The Woco prospect is east of the NE trending Uchi Lake Deformation Zone that straddles Uchi Lake. An old power line goes into the historic Uchi Mine area to the north of the Woco Property.
A total of 201 samples from 95 metres of diamond saw channels were taken in the footwall, the hanging wall, and the quartz veining along the new extended length – 280 metres – of the Woco vein system. Visible gold was identified in 9 samples and 43 samples returned grades greater than 1 g/t Au. The best intersections are 1.1 metres of 10.4 g/t Au and 0.55 metres of 58.2 g/t Au.
Gold mineralization occurs in ribbon quartz veins and a temporal sequence of four alteration types. The grade of mineralization is related to the type of associated alteration. The altered rocks with mica alteration have a schistose fabric. Early biotite and late tourmaline alteration are associated with low-grade gold, while high-grade gold is associated with (post-biotite and pre-tourmaline) quartz-sericite-pyrite-carbonate alteration. Visible gold was observed in ribbon veins with intense sericitization. The pathfinder minerals for the ore shoots are fine pyrite, sphalerite, chalcopyrite, galena, sericite and visible gold. The furthest south sample of the newly discovered Woco South zone returned a value of 1.70 g/t Au in an area of intense tourmaline alteration and is considered open along strike to the southwest.
The 2020 assay and mapping results, in combination with the 2019 drill results, has significantly advanced the knowledge of the high-grade gold mineralization at Woco for follow-up drilling in 2021.
Drill hole AGW-21-020 tested the Woco Vein from the east looking for footwall structures and intersected with 1.92 g/t Au over 1.1 metres at 121 metres. Drill hole AGW-21-021 was a 200-metre step-out south of the high-grade Woco Vein and intersected an altered zone of quartz, epidote, and tourmaline and anomalous gold of 0.45 g/t Au over 1 metre at 78.85 metres. A 3.13 m wide lamprophyre dike located near the mineralized/altered zone and indicates the deep-rooted nature of the high-grade Woco vein system. Drill results at the Woco Zone also include 132.3 g/t Au over 1.8 metres at 88 metres and 20.4 g/t Au over 0.5 metres at 107 metres. Surface high-grade gold mineralization from channel sampling at Woco include 10.4 g/t Au over 1.1 metres and 58.2 g/t Au over 0.55 metres.