La Union


Sold to Riverside Resources for cash, shares, and a royalty on June 26, 2019.

June 26, 2019 – Millrock To Sell Mexico Assets


The primary targets at La Union are precious metal-enriched, carbonate replacement deposits. The secondary target is a concealed, orogenic gold deposit hosted in crystalline basement rocks.

Location and Setting

The La Union project is located along the southeastern terminus of the Sierra el Viejo, approximately 50 kilometers southwest of the city of Caborca, Sorona, Mexico.


Millrock holds a 0.5% net smelter returns (“NSR”) royalty on the project.