Bjorkdal Gold Mine - Sweden Bjorkdal Gold Mine - Sweden Bjorkdal Gold Mine - Sweden

Bjorkdal Gold Mine - Sweden

The Björkdal mine is the largest gold mine in the Skellefte district of northern Sweden. Owned by a wholly-owned subsidiary of Elgin Mining, Björkdalsgruvan AB, the mine has operated for over twenty years. It surpassed its first millionth ounce of gold production in 2010. We were asked to prepare a mineral resource and ore reserve estimate in accordance with the JORC Code – taking into account the combined open pit and underground mining methods involved. 

Our team of technical specialists visited the site to assess the exploration methodology, geological interpretation, grade control and mining practices. We carried out a validation of the exploration database, and based on the morphology of the deposit and mining method determined an appropriate resource estimation strategy for both the open pit and underground areas.

As the complexity and frequency of the quartz veins made it difficult to interpret and model them individually, we created an implicit model based on structural and vein orientation data. We then developed validated resource models suitable for resource reporting, as well as open pit optimisation and mine design. The mineral resource estimate was included in a National Instrument 43-101 compliant report.