The area of the Contact-Cole occurrence is underlain by Lower Jurassic felsic rocks of the Hazelton Group.

The easternmost dacite outcrops between Contact and Cole Creeks (Figure 4b) have been silicified, brecciated and infilled by fine-grained pyrite and graphite. Vein quartz fragments are locally present in the breccia. Chalcopyrite is present as specks in quartz fragments. Several samples contained elevated As, Pb and Zn. In sample 238441, breccia fragments were entirely composed of vein quartz and clots of sphalerite were noted in the matrix: it contained higher values for all base and precious metals. These altered dacite outcrops lie immediately below (stratigraphically) the inferred position of the Eskay-equivalent contact with the overlying mafic/clastic package and could represent footwall alteration in a VMS system,

A sample from 2001 assayed 0.14 gram per tonne, 92.4 grams per tonnes silver, 0.26 per cent copper, 0.24 per cent lead and 1.31 per cent zinc (Assessment Report 26406, sample 238841).

Refer to RDN (104G 144) for details of a common work history.