Calibre Mining Corp. (TSX: CXB) (OTCQX: CXBMF) is pleased to report previously unreleased results from the remaining nine core holes completed during previous exploration programs at the newly acquired, 100% owned Gold Rock project in Nevada, USA. These holes were part of a larger reverse circulation and core program, but assays have only recently become available due to COVID-19-related delays in processing and assays.
Highlights from the nine HQ exploration drill holes include1:
Darren Hall, President and Chief Executive Officer of Calibre, stated: “It is exciting to see continued high-grade intercepts from Gold Rock, in particular those which occur outside the previously reported Preliminary Economic Assessment pit limits. Since the PEA, which was completed in 2020, numerous holes, within and surrounding, the North and South mineral resource pits have intercepted higher grades than the current mineral resource average grade of 0.70 g/t gold. We see significant resource expansion opportunities at Gold Rock and will continue to advance technical studies and drilling along the prospective 16.5 kilometre mineralized trend. Gold Rock presents an exceptional near-term opportunity to grow production in Nevada, leveraging off management and infrastructure at our Pan mine located approximately 20 kilometres northwest of Gold Rock. We have commenced preparing 2022 budgets for Nevada and see an opportunity to materially expand and accelerate the exploration programs given the opportunity for resource expansion and continued discovery potential. Currently we have five rigs operating between Gold Rock and the adjacent Pan mine.”
Gold Rock Overview and Opportunities
The federally permitted Gold Rock project is located approximately 20 kilometres southeast of the Pan mine. In April 2020 a PEA (see Fiore news release dated April 9, 2020 filed on www.sedar.com) was completed, providing an updated mineral resource estimate and a base case developing Gold Rock as a satellite open pit operation. The PEA demonstrates that Gold Rock is an economically viable project and identified several opportunities to enhance the project economics including additional drilling surrounding the mineral resource zones to improve geological model understanding and increase the mineral resource, further metallurgical testing aimed at improving recoveries and geotechnical drilling to better understand pit angles.
Since the PEA important progress has been made including technical studies, column leach metallurgical testing with results expected during the first quarter of this year, and RC, HQ and PQ drilling.
Gold Rock 2020 PEA Highlights
Post PEA Highlight Drill Results (2020 and 2021)
Since the announcement of the PEA in April 2020 over 42,000 metres of RC, HQ and PQ drilling has been completed. Numerous highlight intercepts have been announced demonstrating the potential to expand resources as some of the results extend beyond the previous mineral resource pit boundaries, within the North and South resource pit designs (see June 4, 2021 news release here, March 30, 2021 news release here, and November 24, 2020 news release here). In the case of the North pit, mineralization has been intercepted approximately 400 metres north which remains open for further expansion. Hole GR20-010 is located approximately 300 metres south of the North Pit resource between the North and South pits demonstrating the potential to connect the North and South pits. Drilling will continue across the property and within these pits to better understand the opportunity to pull together the zones into a single pit, make new discoveries and expand resources.
North Pit Resource Zone Highlight Drill Results include1:
South Pit Resource Zone Highlight Drill Results include1:
During 2021, a new discovery was made 1.4 kilometres north of the North Pit trending toward the Jasperoid Creek target. This is an area with very little previous drilling but with favorable geology and continued evidence of the EZ structure which is associated with gold mineralization at Gold Rock. A northeast trend of the primary EZ structure continues over a strike length of 16.5 kilometres of prospective geology, structure, and alteration with pervasive gold and pathfinder element anomalies in soil and rock samples.
Jasperiod Creek Highlight Results1
Link 1 – Figures
Link 2 – Drilling Tables
The PEA is preliminary in nature, that it includes inferred mineral resources that are considered too speculative geologically to have the economic considerations applied to them that would enable them to be categorized as mineral reserves, and there is no certainty that the preliminary economic assessment will be realized. Further, Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability. The Amended Gold Rock NI 43-101 Technical Report dated September 3, 2021 effective date March 31, 2020 located on www.sedar.com and www.calibremining.com.
The scientific and technical information contained in this news release was approved by Paul Noland (AIPG CPG-11293), Calibre Mining’s VP Exploration, Nevada and a “Qualified Person” under National Instrument 43-101.
About Calibre Mining Corp.
Calibre is a Canadian-listed, Americas focused, growing mid-tier gold producer with a strong pipeline of development and exploration opportunities across Nevada and Washington in the USA, and Nicaragua. Calibre is focused on delivering sustainable value for shareholders, local communities and all stakeholders through responsible operations and a disciplined approach to growth. With a strong balance sheet, no debt, a proven management team, strong operating cash flow, accretive development projects and district-scale exploration opportunities Calibre will unlock significant value.
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We acknowledge the [financial] support of the Government of Canada.