The Goodsprings Project is located in the mining friendly, Tier 1 jurisdiction of Nevada, USA. The Project is near the township of Goodsprings, approximately 50km southwest of Las Vegas. Access is via sealed roads, access throughout the Project is good, via a network of unsealed gravel roads. Koba owns a 100% interest in 118 unpatented mining claims covering approximately 900 hectares.
Small scale mining in the Goodsprings District has a long history with many small-scale operations active between 1896 and 1962. Little attention was afforded cobalt until 1921, when 19.1 tonnes of ore at an average grade of 9.5% Co were shipped from four mines.
Systematic Soil Sampling Program
The project underwent systematic soil geochemistry sampling in 2018 with 2,351 samples collected on 200m x 50m centres to help delineate the lateral extent of mineralised areas.
16 significant copper and cobalt anomalies were delineated including:
- a series of five coherent cobalt‐copper soil anomalies that extend over more than 5,000m of strike either side of the historical Columbia Mine, where shipments of ore grading up to 29.2% cobalt were recorded in 1921. These anomalies – Double Down, Surprise, Columbia and Mill are all mapped to lie within the same geological sequence as that which hosts the Columbia Mine; and
- Blue Jay – a 1,000m long coincident cobalt‐copper soil anomaly over and along strike from the historical Blue Jay Mine, where a shipment of ore grading 6.37% cobalt was recorded in 1922.
Subsequently an IP survey was completed covering a total area of 7.2km2 over 7 of the highest priority Co-Cu soil anomalies. 18 high-priority targets were identified where moderate chargeability and/or high conductivity anomalies were coincident with, or adjacent to, anomalous cobalt and copper in soil geochemistry.
No follow-up work has been undertaken on these coincident IP and soil anomalies, and no drilling has been undertaken previously. These high-priority, drill-ready targets could be tested in the near-term.
Koba plans to undertake further field work to better understand mineralisation controls at Goodsprings with the information acquired to further guide future plans.