The Left Over occurrence is located at the headwaters of the south fork of the Tchitin River on its south bank, about 17.75 kilometres northeast of Alice Arm. This showing was initially prospected in 1916 and re-discovered in 1980.

The region is underlain by Lower Jurassic Hazelton Group volcanics and sediments situated on the east limb of the north-northwest trending Mount McGuire anticline. These rocks have been regionally metamorphosed to greenschist facies.

The occurrence consists of a 4 to 6 metre thick rhyolite bed hosted in maroon and green andesitic breccias. The rhyolite bed has been traced for 150 metres, strikes 020 to 040 degrees and dips 45 to 60 degrees southeast. The brecciated to massive rhyolite bed has been silicified and pyritized.

Mineralization consists of massive bands of pyrite and disseminations and blebs of pyrite, galena and minor chalcopyrite. The showing was previously described as a 1.5 metre wide quartz vein containing bands and lenses of galena, chalcopyrite, sphalerite and pyrite (Minister of Mines Annual Report 1916). A five metre channel sample across a pyrite-rich zone assayed 119 grams per tonne silver, 0.20 per cent lead, 0.26 per cent copper, 0.20 per cent zinc, 0.003 per cent mercury and 0.03 gram per tonne gold (Assessment Report 8904, page 4).

In 2005, Kitsault Resources Ltd. completed a reconnaissance stream sediment survey on the area as the Kitsault Gold property.