The Pathfinder property contains the past producing Little Bertha mine (1905) with a 40-foot shaft and 250 feet of tunneling.
From 1900 to 1939, 876 tonnes of ore were shipped from the Little Bertha mine.
From this ore, 467 ounces of gold, 4,242 ounces of silver, 29 kilograms of copper and 391 kilograms of lead were recovered.
The Little Bertha veins range up to 2 metres in width. The estimated strike length of the vein is approximately 100 metres and is considered open in both directions.