The Round Mountain West occurrence is located approximately 5.5 kilometres northwest of the Lawyers mine (094E 066), about 280 kilometres north of Smithers. The showing is exposed on the western slopes of Round Mountain about 2 kilometres south of the confluence of Moosehorn Creek and the Toodoggone River. It lies within the Omineca-Cassiar Mountains at the southern end of the Toodoggone Gold Camp.

The showing is situated within a Mesozoic volcanic arc assemblage which lies along the eastern margin of the Intermontane Belt, a northwest-trending belt of Paleozoic to Tertiary sediments, volcanics and intrusions bounded to the east by the Omineca Belt and to the west and southwest by the Sustut and Bowser basins. Permian Asitka Group crystalline limestones are the oldest rocks exposed in the region. They are commonly in thrust contact with Upper Triassic Takla Group andesite flows and pyroclastic rocks. These Takla rocks have been intruded by plutons and other bodies of the mainly granodiorite to quartz monzonite Early Jurassic Black Lake Suite and are in turn unconformably overlain by or faulted against Lower Jurassic calcalkaline volcanics of the Toodoggone Formation (Hazelton Group).

The dominant structures in the area are steeply dipping faults which define a prominent regional northwest structural fabric trending 140 to 170 degrees. In turn, high angle northeast-striking faults (approximately 060 degrees) appear to truncate and displace northwest-striking faults. Collectively these faults form a boundary for variably rotated and tilted blocks underlain by monoclinal strata.

Round Mountain is underlain mostly by greenish andesite porphyry and volcanic conglomerate but have relict textures of argillic altered porphyritic trachyandesite flows and tuffs, part of a larger package of Toodoggone volcanics assigned to the Metsantan Member. Other lithologies of the Metsantan Member include mostly latite lava flows with interflow lahar, and mixed epiclastic and pyroclastic rocks.

The Round Mountain West showing consists of a zone of quartz-chalcedony veins, stockworks and replacement masses exposed intermittently over 500 metres length and irregular widths, from a few to 50 metres. The zone of silicification follows the same north strike as a fault, about 200 metres to the east. This fault intersects the Cliff Creek fault immediately to the north of the Round Mountain West showing. In the zone of silicification, the rocks are composed of grey glassy quartz. Veins and stockworks are a few millimetres in width. Vuggy quartz fills small open spaces from 2 to 3 millimetres wide and is commonly stained by limonite. Feldspars are partially replaced by epidote.

Several samples were taken from this zone, most of which yielded only background or weakly anomalous values for silver and gold. Sample 326, taken from the northern end of this silicified zone, analyzed 6.8 grams per tonne silver and 0.80 gram per tonne gold (Assessment Report 15469). Sample 324, taken from the adjacent Kodah 1 occurrence (094E 068) at the southern end of the zone, analyzed 7.7 grams per tonne silver and 0.085 gram per tonne gold (Assessment Report 15469).

The Round Mountain showings and the Kodah showing (094E 068) were contained in the Louis property of Stealth Resources in the mid-2000s. Between 2003 and 2006, Stealth Minerals conducted mobile metal ion soil sampling and PIMA spectroscopy analysis on rocks in the Round Mountain showings area. The mobile metal ion line was run to the immediate west of the Round Mountain West showing in 2006.

By 2014, these occurrences were contained within a claim block held by Phoenix Precious Metals Corp. as part of their Lawyers property (094E 066).

Refer to Moosehorn East (094E 261) for details of earlier work done, primarily by Cyprus Metals Canada on its GWP property.

In 2019 and 2020, Benchmark Metals Inc. completed programs of geochemical (rock and soil) and biogeochemical sampling, ground and airborne geophysical surveys, 242 diamond drill holes, totalling 69 080 metres, and 191 reverse-circulation drill holes, totalling 28 395 metres, on the area as part of the Lawyers property. The majority of the drilling targeted the Cliff Creek, Dukes Ridge, Phoenix and AGB zones of the Lawyers (MINFILE 094E 066) deposit.