The Venus and Juno mines are located 4.4 kilometres southwest of Nelson. The two mines combined produced 5411 tonnes in the early 1900's and again in the 1930's. All workings, except the Juno adit, are caved in.

The area is underlain by augite basalt flows, flow breccias and subvolcanic intrusions of the Lower Jurassic Elise Formation (unit Je4), Rossland Group. These have been intruded by granodiorite of the Middle to Late Jurassic Nelson Intrusions. Veins, and stringers up to 1 metre wide, occupy shear zones in schistose volcanics and granodiorite.

The Venus vein strikes 320 to 335 degrees, dips 20 to 50 degrees north and is hosted in both volcanic rocks and granodiorite. The vein, associated with a basic dyke in the lowest adit, has not been traced beyond a fault or downdip from the lowest workings. The vein closely follows the granite-schistose volcanics contact.

The Juno vein, hosted in schistose volcanics, strikes 060 degrees and dips 55 to 60 degrees north, almost at right angles to the Venus vein. The vein was not explored for more than 200 metres on strike or 100 metres downdip.

The veins comprise quartz mineralized with pyrite and minor galena and sphalerite. The veins vary from a few centimetres to over 1 metre in width and locally occur as a number of quartz stringers in sheared host rock. The records indicate the veins tend to be less definite away from the granite contact and the schists become more faulted and brecciated. The two veins should intersect but the junction has not been located in any of the workings.

Production records indicate an average grade of 19.8 grams per tonne gold and 17.7 grams per tonne silver, with minor copper and lead reported.