EV Resources

ASX:EVR

Nevada, USA

Milton Canyon Antimony Project

The Milton Canyon Antimony project is located in Nye County, Nevada, on the western flank of the Shoshone Range, approximately 1 mile south of the historic Grantsville townsite. Historical production of 30 tons averaging 40% antimony from high-grade veins and structures. Historical reports document assays up to 20.77% Sb from stockpiles and 12% Sb in workings. Veins remain open with significant potential for the discovery of additional high-grade antimony mineralization along strike and at depth. The project consists of 15-20 lode claims covering the main historical workings.

High-grade historical production

The project targets multiple high-grade antimony-bearing veins and shear zones hosted within the Triassic Luning Formation limestone. Mineralization is structurally controlled, often found in brecciated zones containing silicified limestone fragments, stibnite, and antimony oxides. A rhyolite dike is also present in the area, cutting the limestone near the workings.

Metals contained within the veins are primarily antimony, with associated silver and gold. Ore minerals identified are stibnite, various antimony oxides, and minor pyrite. Traces of malachite and azurite have also been noted. Stibnite occurs as blebs, radiating clusters, and single crystals up to 2 inches long.

Geophysical data leads

The Milton Canyon mine has a history of high-grade production, with a reported shipment of 30 tons of ore averaging 40% antimony in 1939. Historic grab samples from stockpiles have returned assays of 20.77% Sb and 12.57% Sb, with one report noting mineralization up to 12% Sb within underground workings.
Development on the property consists of multiple shafts (26 ft, 210 ft, and 20 ft), a 34-foot adit, and numerous shallow pits and adits exploring several structures on both sides of Milton Canyon. Historic geological reports noted the high-grade nature of the mineralization and recommended further exploration, including driving new adits from Milton Canyon to test the structures at depth.

Additionally, USGS recorded sampling in the northern project area returned assays up to 30,000 ppm (3.0%) antimony and multi-metal credits, suggesting broad mineralization across the claim area.