Minaurum Gold Inc. announced that it has begun rehabilitation of one of the largest historic underground silver mines at its Alamos silver project in Sonora, Mexico. The Promontorio mine historically produced approximately 70 Moz silver, was left in mineralization, and remains significantly underexplored. Initial rehabilitation to facilitate mapping and sampling of more than 1 km of workings will take several months to complete and will consist of securing and cleaning all underground areas, and removing and stockpiling backfill for possible future processing.

Historical records indicate that the Promontorio Mine closed in 1896 and remained abandoned until the 1960s. Material was processed from surface dumps and underground backfill, along with underground drilling and mapping at Promontorio. The 1960s effort included the clearing of the main haulage level and access to lower levels of the Promontorio Mine and to the northernmost part of it.

Nineteen underground diamond holes were drilled during the 1960s and several of them intersected significant widths of high-grade mineralization. This mineralization was left untouched and Minaurum successfully cut extensions of it with surface drilling. surface core holes totaling 42,317.7 m, testing 19 of the 26 veins zones that it has identified on the project.

Most of the drilling was conducted via holes spaced 200-400 m apart to test new vein systems and their continuity. The historic mining zones were left relatively untouched, but surface drilling at the Promontorio vein zone, guided by limited 1960s underground drilling, identified several areas of what appear to be coherent and continuous high-grade mineralization. Minaurum has reason to believe these areas still host significant potential for high-grade silver mineralization and should be the first area of focus of this underground rehabilitation program.