Great Western has 8 distinct claim groups in Nevada targeting both precious metals and base metals. Please explore each claim group and use the table below to see the different stages of exploration and subsequent evolution. Feel free to contact us with any questions you might have and we will be happy to help.

Snapshot

Rock House (RH)

Rock House has the potential for gold and silver deposits over 6.2 km² with 3 distinct targets. Great Western first drilled Rock House in 2021 with follow-up drilling, as part of the 2022 drilling programme, complete and now awaiting lab assays.

The stratigraphy and structural settings are similar to the nearby Candelaria District, which produced 38.5 million tonnes grading 61 grams per tonne of silver from an open-pit, heap-leaching operation from 1980 until recent times as well as high grade ore from narrow veins mined from underground methods in the late 19th and early 20th centuries.

During 2021 drilling encountered gold at shallow depths at the Southern Alteration Zone ("SAZ") in multiple holes with best intercepts 8.02 g/t Au in one hole and 2.29 g/t Au in another.

As part of the 2022 drilling programme, three further holes have now been drilled with a combined length of 488 metres. RHRC008, the first and longest hole, was drilled directly below the section which identified the best intercepts in the 2021 programme. Hole RHRC008 contains sections of pyrite impregnation over tens of metres in both rhyolites and black carbonaceous sediments, along with quartz and carbonate veins and veinlets. These features are at positions that appear to correlate, via the prevailing geological structure, to the high-grade intercepts of 2021. The presence of pyrite impregnation and veining do not guarantee mineralisation but are very encouraging.

Key Facts

  • Never previously drilled or exploited
  • 515 metres drilled in 2021
  • 2021 drilling encountered gold at shallow depth in multiple holes
  • Best intercepts 8.02 g/t Au in one hole and 2.29 g/t Au in another
  • 488 metres drilled in 2022 with positive indicators of alteration
  • 2022 drilling cuttings awaiting laboratory results
  • Target range 25,000-75,000 oz gold

Images

Exploration

A virgin area which has never previously been drilled or exploited with first drilling completed in 2021. Consists of 3 distinct targets:

  • Southern Alteration Zone
  • Eastern Shear Zone
  • Northern Slate Zone

Great Western identified these targets through satellite imagery, desk top research, rock chip sampling, soil sampling and trenching.

First-phase drilling programme in 2021 for gold and silver complete, with six holes drilled at the Southern Alteration Zone ("SAZ") totalling 1,685 feet (515 metres) using a reverse circulation rig. Drilling encountered gold at shallow depths in multiple holes with best intercepts 8.02 g/t Au in one hole and 2.29 g/t Au in another.

The objective of the 2022 programme is to uncover further extensions to the identified mineralisation along-strike to the west and deeper drilling will aim to establish whether the zone contains significant dip extents. The programme aims to test a potential increase in zone thickness and grade where narrow structures coalesce, either along-strike or down-dip.

During 2022, three further holes have now been drilled in the SAZ with a combined length of 488 metres, using a reverse circulation rig. RHRC008, the first and longest hole, was drilled directly below the section which identified the best intercepts in the 2021 programme, being (1) 1.5 m at 8.02 g/t gold from 97.5 m in RHRC006 and (2) 1.5 m at 2.29 g/t gold from 29.0 m in RHRC007. Hole RHRC008 contains sections of pyrite impregnation over tens of metres in both rhyolites and black carbonaceous sediments, along with quartz and carbonate veins and veinlets. These features are at positions that appear to correlate, via the prevailing geological structure, to the high-grade intercepts of 2021. The presence of pyrite impregnation and veining do not guarantee mineralisation but are very encouraging.

Holes RHRC009 and RHRC010 were drilled on a new section to the west and indicated zones of iron oxide and local trace pyrite disseminations. Mineralisation at RH can be visually subtle and the possibility of intersecting grade in these holes cannot be assessed until the cuttings have been assayed in a laboratory.

Great Western has a target range of 25,000 - 75,000 oz gold for the Rock House Group. 

Geology

The geology at Rock House is dominated by Palaeozoic and Mesozoic sediments, overlain by Tertiary age volcaniclastics.  The pre-Tertiary sedimentary units consist of flaggy brown and grey slates in the north and black carbonaceous siltstones in the south. Tertiary age volcanic units include rhyolites in the west and mafic tuffs to the north, which unconformably overlay the basement units.  The basement slates and siltstones are considered contemporaneous with the Candelaria and Palmetto Formations found to the East at Candelaria, which host the bulk of the Silver mineralisation found there.

At Rock House, massive-sulphide bearing oxidised quartz breccia veins, with pervasive silicification and argillic alteration on faulted contacts between the slate, siltstone and rhyolites, have been mapped and sampled. These mineralised structures are traceable across the entire 2.7 km E-W extent of the RH claim block and have been designated as the Eastern Shear Zone ("ESZ") prospect.

A subsequent soil sampling campaign over the remainder of the basement exposure at RH Group has clearly identified two further prospective zones of mineralisation, in addition to the Eastern Shear Zone previously mentioned.  These two new prospects have been designated as the Northern Slate Zone ("NSZ") and the Southern Alteration Zone ("SAZ").

Location

Locations