The Main showing on the Julio 1-16 claims is located south of the Nation River, approximately 4 kilometres west of the western end of Tsayta Lake.
The area is bounded to the east by Permian sediments of the Cache Creek group and consists of limestone, argillite, and phyllite. Upper Triassic to Lower Jurassic volcanics and sediments of the Takla group extend west from the Vital fault to the Takla fault. To the south east a small Permian (?) ultrabasic intrusion that is surrounded by an Early Jurassic quartz monzonite stock (Topley intrusion) occurs.
Locally, pale grey, brown to pinkish, sugary textured ‘"syenitic"’ dikes, from 0.5 to 2.6 metres wide, host gold and tellurium bearing quartz veins. The dike hosting the main showing has been exposed for up to 110 metres in length and strikes approximately 153 degrees and ranges in dip from 20 to 45 degrees to the southwest.
Alteration consists of limonite and sericite, the latter usually found along the margins of the quartz veins and near highly limonitic zones. Weak carbonate alteration of the dike is evident in the groundmass and along some fractures.
Mineralization within the argillite rocks occurs as minor disseminations of pyrite that seldom exceeds 1 to 2 per cent with minor amounts of chalcopyrite.
Work History
In 1994, Hunting Resources completed a program of geological mapping, geochemical sampling, prospecting and VLF-EM and magnetometer geophysical surveys. Samples of mineralized material returned up to 9.6 grams per tonne gold (Assessment Report 23502).
In 2019, David. J. Bridge completed a review of the occurrence area as the Den Nation claim.