The Chum occurrence is located on east facing slopes, west of Horseshoe (Vanstone) Creek and at an elevation of approximately 850 metres. The showing is situated approximately 18 kilometres north-northeast of the town of Gold River.

The majority of the property is underlain by grey-green weathering, quartz-calcite amygdaloidal basalt of the Upper Triassic Karmutsen Formation. The basalt sequence is cut by five distinct intrusive suites, which include: lamprophyre dykes; medium-grained, equigranular granodiorite dykes; strongly feldspar-hornblende porphyritic dykes of intermediate composition; a fresh, hornblende granodiorite stock of likely Early Cretaceous age; and a small, poorly exposed stock, or dyke, of dioritic composition near the north-west corner of the property. Silicification, chloritization and epidotization are observed.

Locally, basalt hosts fine cross- cutting fractures filled with minor pyrite, pyrrhotite and epidote. In 1997, three samples from the area, as defined by a magnetic anomaly, yielded up to 0.086 per cent copper and 0.020 per cent lead (Assessment Report 25248).

During 1994 through 1997, Cominco completed programs of geological mapping, geochemical sampling and ground magnetic and electromagnetic surveys on the area as the Chum claims. In 2011, Universal Ventures Inc. completed a program of geochemical sampling, geological mapping and an airborne geophysical survey on the area as the Tib claims, Tibor property.

In 2017 and 2018 an interpretive study followed by limited rock sampling was conducted in the Vanstone Creek area by tenure holder K. Galambos (Assessment Reports 37381, 38287).