The Empress property is located along the contact between limestone of the Devonian-Permian Chillwack Group and a middle Tertiary granodiorite intrusion which is part of the Coast Plutonic Complex.

Mineralization occurs in the metamorphosed limestone and along the granodiorite-limestone contact. The garnet-wollastonite skarn hosts chalcopyrite with some bornite, molybdenite, pyrite and magnetite. Epidote, malachite and azurite is associated with the skarn and the metamorphosed limestones. Bedding strikes east-west and dips about 80 degrees north.

Considerable development work was done on the property between 1915 and 1917. A representative sample from the ore dump containing chalcopyrite in a gangue of magnetite and garnetite anaylsed trace gold, 48.0 grams per tonne silver and 5.3 per cent copper (Minister of Mines Annual Report 1917, page 287). About 181.4 tonnes of ore was shipped from the property between 1916 and 1917. In 1917, 91 tonnes of ore produced 6350 kilograms of copper.

In 2011, Bear Mountain Gold Mines Ltd. staked the area as the Harrison South property. The following year, Bear Mountain Gold Mines completed a soil sampling program on the property. This work identified two areas of gold-in-soil anomalies to the north.

In 2017, Haro Metals Corp. completed a program of soil sampling on the area which identified additional gold-in-soil anomalies to the north.