The Caroline property consisted of 9 claims and is located on the south side of Gwillim Creek, 9 kilometres northwest of the town of Slocan. An old upgraded wagon road connects the property to the town.

In 1948, Antimony Mines & Metals (Slocan), Limited, purchased the group from J.N. Russell. This company traced the vein for about 762 metres and did some sampling which showed good stibnite values, as well as traces of gold and other metals. It was planned to drive an adit into the vein, but the following year three holes were drilled on the vein exposures revealed no antimony. This company surrendered its charter in 1951.

The showing consists of a quartz vein in the bed of a northerly flowing tributary of Gwillim Creek. The country rock is a granite gneiss. The hillside is quite steep, and the vein is exposed along the creek bed for a vertical height of about 460 metres. The vein ranges in width from 0.6 to 1.5 metres and appears to be nearly vertical. Two lenses of stibnite, up to 7.6 centimetres in width, occur in the vein.