The United workings consist of a two-compartment shaft inclined at 60 degrees to the southwest, reported to be 72 metres deep, and three level workings from the shaft.

Most of the work on the United was done before 1910. Shipments of ore were made between 1918 and 1920. The property was drilled in 1950 and much of the old dump near the shaft was trucked to the Yale mill in 1952. At total of 776 tonnes of ore was mined and 95,455 grams of silver, 81,160 kilograms of lead and 93 grams of gold were recovered.

Mineralization exposed in a trench northwest of the shaft and at the collar of the shaft is along a vein in fine-grained hornblende schist of the Permo-Triassic Kaslo Group which strikes northwest and dips 60 degrees to the southwest. The vein contains quartz, galena, spalerite, pyrite and minor chalcopyrite and is about 60 centimetres thick. The trench is within 15 metres of the Jospephine fault, which separates the hornblende schist from grey knotted schist and intercalated minor limestones to the west. The vein is not found west of the Josephine fault, and probably it swings northward into the fault.