The property comprising the Sunset (Lot 788) and Mother Lode (Lot 704) (082ESE035) mines is centred four kilometres northwest of Greenwood at the elevation of 1000 metres. Access is by good gravel road which connects the property to the Mother Lode Creek road and Greenwood.

The host rocks in the area are steep, easterly dipping conglomerates and limestones of the Middle Triassic Brooklyn Group. The geology of the Sunset mine is similar to the Mother Lode except there are two relatively flat lying ore bodies at Sunset that appear to have developed in skarnified Brooklyn rocks on the limbs of a northerly trending anticlinal structure. A thrusted plate of Knob Hill chert passes only a short distance under the floor of the Sunset mine and at a slightly greater depth under the Mother Lode. Chalcopyrite was most abundant in the Sunset mine but tonnage was relatively small.

Production from the Sunset between 1900 and 1918, totalled 109,305 tonnes of ore yielding 145 kilograms of gold, 747 kilograms of silver, and 866.5 tonnes of copper. Ore produced in 1960 is included with the Mother Lode.

The Sunset claim was at first developed separately from Mother Lode. Exploration began in 1897 and 1898 with the sinking of several shallow shafts and completion of a 120-metre long adit. Underground development to 1902 totalled 2180 metres. Subsequently, the ore was mined from two main pits 120 metres apart measured in a northwest - southeast direction. Ore was processed at a smelter near Boundary Falls until 1918 when the mine closed.

The Mother Lode was renewed in 1956 as an open pit mine supported by a 900-tonne per day mill. Production continued in 1959, augmented somewhat in 1960 with ore from the Sunset mine. Operations closed in 1962 and the concentrator was removed from the mine site.

During 2008 through 2012, Grizzly Discoveries Inc. completed programs of rock and soil sampling, geological mapping, ground geophysical surveys and diamond drilling on the area as the Motherlode portion of the Greenwood property. In 2009, nine samples from the Sunset occurrence area yielded values from 1.70 to 4.88 grams per tonne gold, 7.1 to 55.0 grams per tonne silver and 0.55 to 3.68 per cent copper (Dufresne, M. (2013-11-25): Technical Report for the Greenwood Gold Project).