The OGI Property is located approximately 55 km northeast of Dawson City, Yukon (Figure 1). Dawson City hosts several hotels and restaurants, gas stations, a hardware store, a hospital and is serviced by a 5000-foot runway capable of accommodating passenger jet aircraft. The claims are located approximately 8 km northwest of the past producing Brewery Creek gold mine. Access to the property is by helicopter from either Dawson City or from the Dempster Highway located approximately 8 km west of the property. The OGI project consists of 99 contiguous quartz claims covering approximately 2,079 hectares and is 100% owned by Sitka Gold Corp.
Figure 1: OGI Property Location
The targets at the OGI property include both an intrusion related gold system such as Brewery Creek and a stratabound, sedimentary exhalative (SedEx) base and precious metal deposit such as Howards Pass, in Road River stratigraphy within the Selwyn Basin. The Road River Formation that underlies the Property is known throughout the Selwyn Basin to host SedEx style base and precious metal mineralization. The geochemical signature at OGI has similarities to Howards Pass suggesting that the source of the OGI soil anomaly is a SedEx style target and not simply a Zn-rich seep or ferricrete associated with a fault zone or a small intrusive.
The area of the OGI Property was originally staked in 1989 by Tombstone Explorations Company Ltd., who carried out limited prospecting and geochemical silt sampling in 1990. The claim group was optioned to International Kodiak Resources Ltd. and in 1997 Kodiak carried regional stream sediment sampling, soil sampling, prospecting, geological mapping and airborne geophysical surveying.
In 2011, Fox Exploration Ltd. staked the OGI claims to cover prospective gold anomalies generated from an historic stream sediment sampling program that suggested the property could host gold mineralization similar to Brewery Creek. In 2012 Fox conducted a program of soil sampling on the property that returned a single sample of 3.7 g/t Au in the vicinity of the Ridgeway Minfile occurrence (895 ppb Au, 1,065 ppm As, 10 ppm Sb and 3,650 ppm Hg in quartz monzonite float) and identified an area of strongly anomalous Zn and Ag values in the southern part of the property. Additional exploration conducted on the Property during 2013 to 2017 defined a Zn-Ag soil geochemical anomaly approximately 1,000 m in length and 500 m wide in this area. The anomaly is strongly anomalous in Zn (2,000 to +10,000 ppm), Ag (10 ppm to +50 ppm) and enriched in a number of other metals and remains open to the south (Figure 2).
In 2017, Pacific Ridge Resources optioned the Property and conducted limited exploration focused on the anomalous Zn-Ag anomaly. Geological mapping, infill soil sampling, trenching and a MAG-VLF survey were completed. This work confirmed and added detail to the Zn – Ag anomaly and demonstrated that some east west trending conductors occur within the anomalous area.
In 2020, Sitka Gold Corp optioned the property and completed a 12.2 square kilometer drone survey that produced a detailed topographic map, and a 4 hole, 103.6 m Rotary Air Blast (RAB) drilling program (Figure 2). Drilling conditions were difficult and none of the RAB holes reached target depth. Holes OGI RAB 20-001, 003 and 004 all intersected a black fine grained argillaceous unit that is moderately to strongly anomalous in zinc and silver. The strongest mineralization was encountered in OGI-RAB-20-004 which averaged 1,963 ppm Zn and 5.7 ppm Ag over its entire 30.5 m length. The highest results from the hole were 1.5 m of 5,430 Zn at 13.7 m and 1.5 m of 11.6 g/t Ag at 3.0 m.
Figure 2: Zinc soil anomaly and location of 2022 RAB drilling
In 2021 Sitka Gold Corp. completed a gravity survey over the zinc – silver anomaly on the southern part of the property. The survey identified 3 gravity high anomalies and 2 gravity low anomalies that justify further investigation by way of a more detailed compilation of geological and geochemical data, ground truthing and more detailed gravity surveying. The 2022 exploration program on the OGI property, also by Sitka Gold Corp., consisted of soil and limited rock sampling programs but did not follow up on the recommendations of the 2021 gravity survey work.
Sitka Gold Corp completed the option to purchase the 100% OGI property in June, 2025.