The H-4 occurrence is located near the southwestern shore of Helldiver Lake.

The area is underlain by basaltic volcanic rocks of the Triassic Karmutsen Formation (Vancouver Group).

Locally, the type of mineralization is not described but is likely similar to that in the Little Lost and Lost lakes area to the south and comprise amygdaloidal basalt with variable (0.1 to 5 per cent by volume) quartz-calcite-chlorite alteration, sparse disseminated and fracture filling pyrite-pyrrhotite, and trace amounts of chalcopyrite, arsenopyrite and malachite.

In 1986, three rock samples (5A, DV-8 and 1C) are reported to have yielded from 1.6 to 10.5 grams per tonne silver and 0.439 to greater than 1.00 per cent copper (Kikauka, A. (2012-07-03): NI 43-101 Technical Report on the Harmony Property).

Work History

During 1986 through 1993, Westmin Resources completed programs of prospecting, geological mapping, geochemical sampling and airborne and ground geophysical surveys on the area as the Ideal 1-9 and Harmony claims.

In 2012, Altamont Exploration completed a program of geological mapping and rock, silt and soil sampling. In 2016, Whitewater Capitol Corp. completed a program of geochemical (rock, soil and stream sediment) sampling on the area.

In 2020, Blanton Resources Corp. completed a program of prospecting, geological mapping and geochemical (rock, soil and stream sediment) sampling on the area as the Isla property.