The James X showing is on the summit of Boulder Mountain, 2.2 kilometres north of Lockie (Boulder) Creek and 7.5 kilometres north-northwest of Tulameen.
This copper-zinc-lead showing is hosted in andesite of the Upper Triassic Nicola Group. The rock exhibits epidote, chlorite and weak clay alteration, and is cut by numerous quartz veins and stringers. Some shearing is also evident.
The andesite is mineralized with stringers and blebs of pyrite and chalcopyrite. Massive chalcopyrite and pyrite were also intersected in diamond drilling. One hole angled at -60 degrees east (Jax-78-1) intersected a band of massive sulphide at 6.1 to 6.4 metres depth containing 30 per cent chalcopyrite and 20 per cent pyrite. The mineralized section assayed 1.25 per cent copper, 0.02 per cent zinc, 7.5 grams per tonne silver and 0.03 gram per tonne gold over 1.5 metres (5.5 to 7.0 metres) (Assessment Report 7159, assay certificate). Surface samples are reported to analyse up to 12.5 per cent zinc and 1.60 per cent lead (Assessment Report 7159, page 2).