Columbus completes drilling at the Bolo Gold Project

Columbus has completed 14 reverse circulation drill holes, totaling 2806 m, at its 100% owned Bolo gold project, located 90 km northeast of Tonopah, Nevada.

Eleven of the holes tested the previously undrilled Uncle Sam patented claim, which was acquired by Columbus in 2016. Uncle Sam covers a 500 m strike extension of a fault zone immediately south of an area that Columbus previously drilled, which included drill hole BL-38, which returned 133 m of 1.28 g/t gold from the surface (including 30.5 m. of 3.24 g/t gold), drill hole BL-39, which returned 89.9 m of 1.0 g/t gold from surface (including 40.9 m. of 2.05 g/t gold), and drill hole BL-41, which returned 51.8 m of 1.27 g/t gold from surface. Holes BL-38, 39, and 41 were drilled approximately 100 m north of Uncle Sam. In addition to drilling at Uncle Sam, three holes were drilled in the fault zone to test extensions to the west and north.

Twelve of the fourteen drill holes encountered strong alteration, including decalcification, quartz veining and stockworks, strong iron oxide staining, and intense silicification (jasperoid) replacement. The thickness of the alteration encountered varied from 30 m to 100 m, with the alteration beginning at surface in some of the drill holes. Alteration occurred in several Paleozoic rock formations, including the Cambrian Windfall Formation in the hanging wall of the fault, and the Ordovician Hanson Creek Formation and Silurian Roberts Mountain Formation in the footwall.

The last drill hole of the programme, drill hole BL-67, was an exploration hole drilled along the fault, 200 m north of where the majority of drilling has occurred and near an area where a surface sample in jasperoid returned 3.24 g/t gold. Drill hole BL-67, an angle hole, encountered 100 m of strong alteration, including jasperoid and strong iron oxides, from surface to 100 m. This hole will require offset drilling, especially to the north along the fault.

All drill samples have been stored in sealed and wire strapped containers in Tonopah. The samples will be shipped to the lab when the spin-out of Allegiant Gold has been completed.

Bolo is a Carlin-type gold and silver project, where surface sampling has defined widespread gold mineralisation, associated with jasperoids and iron-stained structures, along two parallel north-south trending faults known as the Mine Fault and the East Fault.

Read the article online at: https://www.globalminingreview.com/mining/31082017/columbus-completes-drilling-at-the-bolo-gold-project/