The Virden Mine area is located near Swauk pass in the Swauk Mining District. The mines were gold producing and consisted of placer and lode mines. Mining in this area dates back to the late 1890's with off on on activity to present day.
The Swauk district, which had a total production of 7,141 ounces of lode gold and 4,972 ounces of placer gold between 1868 and 1959
Source: Inventory of Washington Minerals, Volume II Metallic Minerals, Bulletin No. 37, Marshall T. Huntting, 1956