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A1 Gold Mine

The A1 Gold Mine is one of the premier Victorian Goldmines. Running since 1861 the mine has historically averaged 25g/t gold production.


In January 2021, Kaiser acquired 100% of Centennial Mining Ltd and therefore a 100% interest in Centennial assets; A1 gold mine, Maldon goldfield (care and maintenance) and the Maldon processing plant which treats A1 ore.

The A1 gold mine was discovered in 1861 at an outcrop known as Castle Reef and underground mining accessed by two shafts continued until 1992. Historical records show total production of approximately 620,000 ounces of gold.

The A1 Gold Mine is located within a north-west trending belt of tightly folded Early Devonian sedimentary rocks. Mineralisation at the A1 Gold Mine is hosted within, or immediately adjacent to diorite dykes.

Ongoing mining is conducted using air-leg mining techniques targeting the high-grade (+10 g/t Au) ore. The intent is to expand into mechanised mining upon completion of successful underground exploration to delineate increased resources and reserves to support the operation expansion.


The A1 Gold Mine is located in Eastern Victoria, 23km south-southeast of Jamieson and 300km east of Maldon (by road). The project is located on the extensive and prospective Lachlan Fold Belt which extends from New South Wales to Victoria. 

A1 gold mine location
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