Pinnacle Defines High-Grade Gold-Silver Mineralization in Dos de Mayo Mine at El Potrero

Pinnacle Defines High-Grade Gold-Silver Mineralization in Dos de Mayo Mine at El Potrero

(TheNewswire)

VANCOUVER, BRITISH COLUMBIA TheNewswire - September 09, 2025 (TSXV: PINN,OTC:NRGOF, OTC: PSGCF, Frankfurt: P9J) Pinnacle Silver and Gold Corp. (" Pinnacle " or the " Company ") is pleased to announce that systematic underground channel sampling in the historic Dos de Mayo mine at the El Potrero Project in Durango, Mexico is providing a good look at the gold-silver distribution within the known mineralized zone. Fifty-three channel samples, in 13 composite channels, were taken within a raise (inclined tunnel approximately 1.5 metres in diameter) connecting two levels 25.5 metres apart.  Composite assays up to 11.2 gramstonne gold (gt Au) and 179 gramstonne silver (gt Ag) over 3.5 metres, 15.55 gt Au and 222 gt Ag over 1.1 metre and 11.93 gt Au and 190 gt Ag over 1.4 metres (see Table 1 below ) were obtained, with individual assays up to 27.6 gt Au and 366 gt Ag over 0.6 metres .  The weighted average of mineralized composites within the raise assayed 6.43 gt Au and 110 gt Ag .

"As at the historic Pinos Cuates mine (see news releases for June 2 and July 22, 2025 ), the existing underground workings at Dos de Mayo are giving us an important understanding of the nature of the gold-silver mineralization at El Potrero," stated Robert Archer, Pinnacle's President & CEO.  "What we are seeing is consistent with these low-sulphidation epithermal systems, where pockets of high-grade mineralization (called "clavos" in Mexico) occur within a defined horizon, likely consistent with the "boiling zone" of the hydrothermal fluids.  At both mines, the ‘main' level appears to have been the haulage level as they are mostly unmineralized, although sporadic higher-grade assays were received.  Despite the lack of historic production records, it seems likely that the haulage levels were constructed below, and outside of, the mineralized horizon.

It is important to note that sample lengths do not represent the width of the vein or the extent of the mineralization.  They are simply the composite lengths of the individual channels sampled end-to-end and may be taken at any angle to the trend of mineralization, depending upon what is exposed underground.  While the systematic and close-spaced nature of the sampling does give a representative characterization of the mineralization, the full extent of this particular clavo, as at Pinos Cuates, is as yet unknown and will require drilling to determine.

On a larger scale, the underground sampling is providing crucial information to better understand the distribution of gold and silver mineralization such that we can correlate with the surface sampling within the collective 500 metre strike length of the historic mines and then extrapolate along the entire 1,600 metre strike length that we have defined to date.  We are currently in the planning stages for an underground drilling program at all three main mines that will effectively be delineation drilling on a fairly detailed scale.  Further information on that will be released in due course."

Of the 53 channel samples taken in the raise, grades ranged from 0.061 to 27.6 g/t Au and 8 to 366 g/t Ag.  An additional 146 channel samples were taken on the main level at Dos de Mayo and, as noted above, values were mostly less than 1 g/t Au as this is considered to be outside of the mineralized horizon.  On a sublevel, approximately 25.5 metres above, and connected to, the main level, 42 channel samples were taken, in 9 composites, highlighted by 10.99 g/t Au and 61 g/t Ag over 0.9 metres and 4.22 g/t Au and 40 g/t Ag over 0.6 metres .  It is not yet fully understood how the sublevel is positioned relative to the mineralized zone.

Table 1: Composite Channel Assays – Dos de Mayo Raise

Sample Numbers

Composite No.

Composite Length (m)

Au g/t

Ag g/t

EPUG25507-25510

2

2.0

7.27

63

EPUG25511-25514

3

1.9

2.02

50

EPUG25516-25518 and 25521-25523

4

2.9

4.95

116

EPUG25524-25529

5

3.2

6.43

119

EPUG25530-25532

6

1.8

6.23

106

EPUG25538-25539

8

1.7

2.08

45

EPUG25541-25543

9

2.6

2.15

58

EPUG25544-25549

10

3.5

11.20

179

EPUG25550-25551

11

1.3

4.95

100

EPUG25552-25553

12

1.1

15.55

222

EPUG25556-25557

13

1.4

11.93

190

All samples were assayed for gold, silver and a suite of 32 other elements, including copper, lead and zinc.  However, the base metal assays were consistently low, confirming that this is a precious metal dominant system.

The Dos de Mayo mine is the southeasterly of three historic mines along a 500 metre strike length on the Dos de Mayo vein system on the Potrero property.  Underground sampling is now continuing at La Dura mine to the northwest.  The vein system has been traced on surface for 1,600 metres and there are other parallel and splay veins that are being further defined and evaluated as the property has never been systematically explored.  The mine workings have now been accurately surveyed and individual 3D models are being created for each mine in Leapfrog.

QA/QC

The technical results contained in this news release have been reported in accordance with National Instrument 43-101 Standards of Disclosure for Mineral Projects ("NI 43-101").  Pinnacle has implemented industry standard practices for sample preparation, security and analysis given the stage of the Project.  This has included common industry QA/QC procedures to monitor the quality of the assay database, including inserting certified reference material samples and blank samples into sample batches on a predetermined frequency basis.

The systematic chip channel sampling was completed across exposed mineralized structures using a hammer and maul.  The protocol for sample lengths established that they were not longer than two metres or shorter than 0.3 metres.  The veins tend to be steeply dipping to vertical, and so these samples are reasonably close to representing the true widths of the structures.  Samples were collected along the structural strike or oblique to the main structural trend.

All samples were bagged in pre-numbered plastic bags; each bag had a numbered tag inside and were tied off with adhesive tape and then bulk bagged in rice bags in batches not to exceed 40 kg.  They were then numbered, and batch bags were tied off with plastic ties and delivered directly to the SGS laboratory facility in Durango, Mexico for preparation and analysis.  The lab is accredited to ISO/IEC 17025:2017.  All Samples were delivered in person by the contract geologist who conducted the sampling under the supervision of the QP.

SGS sample preparation code G_PRP89 including weight determination, crushing, drying, splitting, and pulverizing was used following industry best practices where all samples were crushed to 75% less than 2 mm, riffle split off 250 g, pulverized split to >85% passing 75 microns (μm).  All samples were analyzed for gold using code GA_FAA30V5 with a Fire Assay determination on 30g samples with an Atomic Absorption Spectography finish.  An ICP-OES analysis package (Inductively Coupled Plasma - Optical Emission Spectrometry) including 33 elements and 4-acid digestion was performed (code GE_ICP40Q12) to determine Ag, Zn, Pb, Cu and other elements.

Qualified Person

Mr. Jorge Ortega, P. Geo, a Qualified Person, and independent from Pinnacle, as defined by National Instrument 43-101, and the author of the NI 43-101 Technical Report for the Potrero Project, has reviewed, verified and approved for disclosure the technical information contained in this news release.

About the Potrero Property

El Potrero is located in the prolific Sierra Madre Occidental of western Mexico and lies within 35 kilometres of four operating mines, including the 4,000 tonnes per day (tpd) Ciénega Mine (Fresnillo), the 1,000 tpd Tahuehueto Mine (Luca Mining) and the 250 tpd Topia Mine (Guanajuato Silver).

High-grade gold-silver mineralization occurs in a low sulphidation epithermal breccia vein system hosted within andesites of the Lower Volcanic Series and has three historic mines along a 500 metre strike length.  The property has been in private hands for almost 40 years and has never been systematically explored by modern methods, leaving significant exploration potential.

A previously operational 100 tpd plant on site can be refurbished / rebuilt and historic underground mine workings rehabilitated at relatively low cost in order to achieve near-term production once permits are in place. The property is road accessible with a power line within three kilometres.  Surface rights covering the plant and mine area are privately owned (no community issues).

Pinnacle will earn an initial 50% interest immediately upon commencing production.  The goal would then be to generate sufficient cash flow with which to further develop the project and increase the Company's ownership to 100% subject to a 2% NSR.  If successful, this approach would be less dilutive for shareholders than relying on the equity markets to finance the growth of the Company.

About Pinnacle Silver and Gold Corp.

Pinnacle is focused on district-scale exploration for precious metals in the Americas.  The high-grade Potrero gold-silver project in Mexico's Sierra Madre Belt hosts an underexplored low-sulphidation epithermal vein system and provides the potential for near-term production . In the prolific Red Lake District of northwestern Ontario, the Company owns a 100% interest in the past-producing, high-grade Argosy Gold Mine and the adjacent North Birch Project with an eight-kilometre-long target horizon . With a seasoned, highly successful management team and quality projects, Pinnacle Silver and Gold is committed to building long -term , sustainable value for shareholders.

Signed: "Robert A. Archer"

President & CEO

For further information contact :

Email: info@pinnaclesilverandgold.com

Tel.:  +1 (877) 271-5886 ext. 110

Website: www.pinnaclesilverandgold.com

Neither the TSX Venture Exchange nor the Investment Industry Regulatory Organization of Canada accepts responsibility for the adequacy or accuracy of this release .

Copyright (c) 2025 TheNewswire - All rights reserved.

News Provided by TheNewsWire via QuoteMedia

PINN:CC
Pinnacle Silver and Gold

Pinnacle Silver and Gold Investor Kit

  • Corporate info
  • Insights
  • Growth strategies
  • Upcoming projects

GET YOUR FREE INVESTOR KIT

The Conversation (0)
Pinnacle Silver and Gold (TSXV:PINN)

Pinnacle Silver and Gold


Keep reading...Show less

District-scale silver-gold exploration and development in the Americas

Pinnacle Delineates New Vein at El Potrero as Robust Epithermal System Takes Shape

Pinnacle Delineates New Vein at El Potrero as Robust Epithermal System Takes Shape

(TheNewswire)

VANCOUVER, BRITISH COLUMBIA, September 24, 2025 TheNewswire - (TSXV: PINN,OTC:NRGOF, OTC: PSGCF, Frankfurt: P9J) Pinnacle Silver and Gold Corp. (" Pinnacle " or the " Company ") is pleased to announce that continuing surface mapping and sampling, in conjunction with the previously announced high grade gold-silver mineralization in the historic Pinos Cuates and Dos de Mayo mines is revealing the presence of a robust low sulphidation epithermal system at the Potrero project in Durango, Mexico. Not only has the surface sampling extended the underground mineralization to surface, but a parallel vein some 200 metres to the southwest, called El Capulin, is demonstrating good continuity of gold-silver mineralization.

News Provided by TheNewsWire via QuoteMedia

Keep reading...Show less
Pinnacle Closes Oversubscribed Non-Brokered Private Placement

Pinnacle Closes Oversubscribed Non-Brokered Private Placement

(TheNewswire)

VANCOUVER, BRITISH COLUMBIA, August 7, 2025 TheNewswire - (TSXV: PINN,OTC:NRGOF, OTC: PSGCF, Frankfurt: P9J) Pinnacle Silver and Gold Corp. (" Pinnacle " or the " Company ") is pleased to announce that, further to Company news releases of July 14 and 25, 2025, it has closed its non-brokered private placement to raise gross proceeds of $1,686,608 (the "Offering").  Due to strong investor demand, the Offering was oversubscribed and now consists of 28,110,134 units (the "Units"), with each Unit, priced at $0.06, comprising one common share ("Share") in the capital of the Company and one-half share purchase warrant ("Warrant").  Each whole Warrant shall be convertible into an additional Share at an exercise price of $0.10 for a period of 24 months from the date of issuance.  Finder's fees consisting of $20,622 in cash commission and 343,700 non-transferable finder's warrants were paid in connection with the offering.  Each finder's warrant entitles the holder to acquire one common share at $0.10 cents per share over a 24-month period.

News Provided by TheNewsWire via QuoteMedia

Keep reading...Show less
Pinnacle Increases Non-Brokered Private Placement

Pinnacle Increases Non-Brokered Private Placement

(TheNewswire)

VANCOUVER, BRITISH COLUMBIA, July 25, 2025 TheNewswire - (TSXV: PINN,OTC:NRGOF, OTC: PSGCF, Frankfurt: P9J) Pinnacle Silver and Gold Corp. (" Pinnacle " or the " Company ") is pleased to announce that, due to strong investor demand, it is increasing its non-brokered private placement announced on July 14, 2025 to now raise gross proceeds of up to $1,650,000 (the "Offering").  The Offering will now consist of up to 27,500,000 units (the "Units") with each Unit, priced at $0.06, comprising one common share ("Share") in the capital of the Company and one-half share purchase warrant ("Warrant").  Each whole Warrant shall be convertible into an additional Share at an exercise price of $0.10 for a period of 24 months from the date of issuance.  Finder's fees consisting of 7 per cent in cash commission and 7 per cent in non-transferable finders' warrants may be paid in connection with the offering.  Each finder's warrant entitles the holder to acquire one common share at $0.10 cents per share over a 24-month period.

News Provided by TheNewsWire via QuoteMedia

Keep reading...Show less
Pinnacle Clarifies Previous News Release

Pinnacle Clarifies Previous News Release

(TheNewswire)

VANCOUVER, BRITISH COLUMBIA TheNewswire - July 22, 2025 (TSXV: PINN,OTC:NRGOF, OTC: PSGCF, Frankfurt: P9J) Pinnacle Silver and Gold Corp. (" Pinnacle " or the " Company ") announces that it is clarifying its previous news release at the request of CIRO.  The Company's continuing underground channel sampling in the historic Pinos Cuates mine at the El Potrero Project in Durango, Mexico has returned multiple high-grade assays up to 85.1 gramstonne gold (gt Au) and 520 gramstonne silver (gt Ag) over 0.5 metres .  A raise (inclined tunnel) between the main and upper levels of the mine provided additional access to the highest grade portion of the vein reported in Pinnacle news release of June 2, 2025 that returned composite channel assays of up to 19.4 gt Au and 266 gt Ag over 4.1 metres.

News Provided by TheNewsWire via QuoteMedia

Keep reading...Show less
Pinnacle Samples up to 85.1 g/t Gold and 520 g/t Silver at El Potrero

Pinnacle Samples up to 85.1 g/t Gold and 520 g/t Silver at El Potrero

(TheNewswire)

VANCOUVER, BRITISH COLUMBIA, July 22, 2025 TheNewswire - (TSXV: PINN,OTC:NRGOF, OTC: PSGCF, Frankfurt: P9J) Pinnacle Silver and Gold Corp. (" Pinnacle " or the " Company ") is pleased to announce that continuing underground channel sampling in the historic Pinos Cuates mine at the El Potrero Project in Durango, Mexico has returned multiple high-grade assays up to 85.1 gramstonne gold (gt Au) and 520 gramstonne silver (gt Ag) over 0.5 metres .  A raise (inclined tunnel) between the main and upper levels of the mine provided additional access to the highest grade portion of the vein reported in Pinnacle news release of June 2, 2025 that returned composite channel assays of up to 19.4 gt Au and 266 gt Ag over 4.1 metres.

News Provided by TheNewsWire via QuoteMedia

Keep reading...Show less
1911 Gold to Present at the Metals & Mining Virtual Investor Conference October 7, 2025

1911 Gold to Present at the Metals & Mining Virtual Investor Conference October 7, 2025

1911 Gold Corporation (" 1911 Gold " or the " Company ") (TSXV: AUMB,OTC:AUMBF; OTCQB: AUMBF; FRA: 2KY) announced today that Shaun Heinrichs, President & CEO of 1911 Gold, will present live at the Metals & Mining Virtual Investor Conference hosted by VirtualInvestorConferences.com on October 7, 2025.

DATE : October 7 th , 2025
TIME: 11:30am-12:00pmET
LINK: REGISTER HERE
Available for 1x1 meetings: October 8th-10th, and 14th Schedule 1x1 Meetings here

News Provided by GlobeNewswire via QuoteMedia

Keep reading...Show less
Apollo Silver Announces $20.88 Million Private Placement Offering

Apollo Silver Announces $20.88 Million Private Placement Offering

Apollo Silver Corp. (" Apollo Silver " or the " Company ") (TSX.V:APGO, OTCQB:APGOF, Frankfurt:6ZF0) is pleased to announce a non-brokered private placement offering of up to 5,800,000 units (the " Units ") of the Company at a price of $3.60 per Unit, for aggregate gross proceeds of up to $20,880,000 (the " Offering ").

Each Unit issued pursuant to the Offering will consist of one common share (a " Share ") in the capital of the Company and one common Share purchase warrant (a " Warrant "). Each Warrant entitles the holder thereof to purchase one Share at an exercise price of $5.50 for 24 months from the closing date of the Offering. The Warrants will be subject to an acceleration provision, such that if at any time after the date that is four months and one day after the closing, the Company's Shares trade on the TSX Venture Exchange (the " TSXV ") at a closing price of $7.50 or greater per Share for a period of ten (10) consecutive trading days, the Company may accelerate the expiry of the Warrants by giving notice to the holders thereof and, in such case, the Warrant will expire on the thirtieth (30th) day after the date of such notice (the " Acceleration Provision ")

News Provided by GlobeNewswire via QuoteMedia

Keep reading...Show less
RUA GOLD Strengthens Management Team with Appointment of VP, Exploration

RUA GOLD Strengthens Management Team with Appointment of VP, Exploration

Rua Gold Inc. (TSXV: RUA,OTC:NZAUF) (OTCQB: NZAUF) (WKN: A40QYC) ("Rua Gold" or the "Company") is pleased to announce the strengthening and expansion of its management team through the appointment of Emmett D'Urso as Vice President, Exploration. Mr. D'Usro will work directly with the Company's COO, Simon Henderson, further enhancing Rua Gold's technical capabilities.

With more than 13 years of mineral exploration experience, Mr. D'Urso brings extensive expertise in orogenic gold exploration, particularly within the Victorian Goldfields, where he has focused on high-grade, narrow vein, Fosterville-style deposits. This experience is especially relevant as Rua Gold's Reefton project shares similar geological characteristics. Most recently, he contributed to exploration programs at Global Ore Discovery, where he played a key role in drill program planning and budgeting for antimony projects in New South Wales.

News Provided by Newsfile via QuoteMedia

Keep reading...Show less
Forge Resources (CSE: FRG)

Forge Resources Intersects Additional Visible Gold in First Hole of Phase II Alotta Drill Program, Yukon

Forge Resources Corp. (CSE: FRG) (OTCQB: FRGGF) (FSE: 5YZ) ("FRG" or the "Company") is pleased to announce initial observations of mineralization from the first diamond drill hole of the Phase II, 2025 drill program at the Alotta gold-copper porphyry property. ALT-25-012 intersected polymetallic veins, with one containing numerous grains of coarse visible gold. Drilling is currently underway at the Alimony Target, and the Company expects to complete an additional 3-4 holes during this program.

Highlights:

Keep reading...Show less
Locksley Resources Limited  Assessment and Evaluation of DeepSolv Program Expansion

Locksley Resources Limited Assessment and Evaluation of DeepSolv Program Expansion

Perth, Australia (ABN Newswire) - Locksley Resources Ltd (ASX:LKY,OTC:LKYRF) (FRA:X5L) (OTCMKTS:LKYRF) is pleased to advise that a senior Locksley team has completed a visit to Rice University in Houston, Texas, to formally evaluate the Company's research collaboration with Rice.

Highlights

- Given increased industry interest in DeepSolv(TM), the Company has requested the expansion & acceleration of the Rice technology program

- The expansion would include the following components:

o Testing of multiple antimony feedstocks at different processing stages, direct ore, post DMS and high-grade concentrates

o Testing of antimony feedstock from multiple sources including the Mojave Project, EV Resources and additional other 3rd party samples

- Meetings held with Professor Pulickel Ajayan, Rice Executive Vice President for Research, and Technology Transfer Office

- Dedicated project workshop with the Ajayan research team to discuss technical programs

- Locksley in discussions with an additional mining group regarding the opportunity of evaluation the DeepSolv(TM) technology

- Locksley is focused upon providing Antimony processing independence to the USA and the opportunity presented by the $1.5bn+ domestic market

During the visit, the Locksley team met with Professor Pulickel Ajayan and members of his laboratory, senior Rice administrators including the Executive Vice President for Research and the Office of Technology Transfer and representatives from Rice Public Affairs. These discussions were followed by a dedicated project workshop with the Ajayan group, providing the foundation for the joint technical program under the collaboration.

The work program, formally launched through this visit, will focus on two parallel thrusts:

1. The development of DeepSolv(TM) product, for the extraction and refining of antimony feedstocks

2. The evaluation of antimony-based materials for advanced energy storage applications

As previously announced, Locksley has secured an agreement with EV Resources for the supply of external antimony ore, which will be incorporated alongside feedstock from the Mojave Project to support the development of DeepSolv(TM). In addition, DeepSolv(TM) continues to gain industry momentum, with discussions now underway with an additional potential user for the treatment of antimony ore. Given the growing industry interest in DeepSolv(TM) the Company is actively evaluating options to expand and accelerate the Rice technology program.

Locksley views the Rice partnership as a cornerstone of its U.S. strategy, providing access to world class expertise and positioning the Company to advance both upstream and downstream opportunities in antimony and rare earths.

Locksley's Chairman Patrick Burke, commented:

"This visit marks an important milestone in Locksley's mine-to-market strategy to onshore the supply of antimony and rare earths into the United States. By formally commencing our collaboration with Rice University and incorporating additional ore supply secured through our agreement with EV Resources, we have laid the foundation for a practical and accelerated testwork program. These initiatives position Locksley at the centre of developing a secure domestic supply chain, aligned with U.S. government priorities. We look forward to working closely with Professor Ajayan and his team as we move rapidly toward delivering tangible results."

*To view images and figures, please visit:
https://abnnewswire.net/lnk/U3C84R75



About Locksley Resources Limited:

Locksley Resources Limited (ASX:LKY,OTC:LKYRF) (FRA:X5L) (OTCMKTS:LKYRF) is an ASX listed explorer focused on critical minerals in the United States of America. The Company is actively advancing exploration across two key assets: the Mojave Project in California, targeting rare earth elements (REEs) and antimony. Locksley Resources aims to generate shareholder value through strategic exploration, discovery and development in this highly prospective mineral region.

Mojave Project

Located in the Mojave Desert, California, the Mojave Project comprises over 250 claims across two contiguous prospect areas, namely, the North Block/Northeast Block and the El Campo Prospect. The North Block directly abuts claims held by MP Materials, while El Campo lies along strike of the Mountain Pass Mine and is enveloped by MP Materials' claims, highlighting the strong geological continuity and exploration potential of the project area.

In addition to rare earths, the Mojave Project hosts the historic "Desert Antimony Mine", which last operated in 1937. Despite the United States currently having no domestic antimony production, demand for the metal remains high due to its essential role in defense systems, semiconductors, and metal alloys. With significant surface sample results, the Desert Mine prospect represents one of the highest-grade known antimony occurrences in the U.S.

Locksley's North American position is further strengthened by rising geopolitical urgency to diversify supply chains away from China, the global leader in both REE & antimony production. With its maiden drilling program planned, the Mojave Project is uniquely positioned to align with U.S. strategic objectives around critical mineral independence and economic security.

Tottenham Project

Locksley's Australian portfolio comprises the advanced Tottenham Copper-Gold Project in New South Wales, focused on VMS-style mineralisation

News Provided by ABN Newswire via QuoteMedia

Keep reading...Show less
LaFleur Minerals Announces Listing on Tradegate, Bolstering its International Visibility and Exposure to European Markets

LaFleur Minerals Announces Listing on Tradegate, Bolstering its International Visibility and Exposure to European Markets

LaFleur Minerals Inc. (CSE: LFLR,OTC:LFLRF) (OTCQB: LFLRF) (FSE: 3WK0) ("LaFleur Minerals" or the "Company") is pleased to announce that as of today, its shares are listed for trading on the Tradegate Exchange ("Tradegate"), one of Europe's most active investor-focused platforms, headquartered in Berlin, Germany. This listing marks a significant step in LaFleur Minerals' strategy to expand its global shareholder base and increase access to European capital markets.

The Company joined Tradegate in order to enhance visibility and accessibility to European and international investors, during an exciting and pivotal time in its exploration and development activities, as LaFleur Minerals transitions from explorer to fully-integrated gold producer at its flagship Beacon Gold Mill located in the prolific Abitibi Gold Belt. As the Company continues to expand its presence throughout new markets, Tradegate provides LaFleur Minerals with a unique opportunity to connect with a diverse, international and growing pool of investors, further solidifying its commitment to transparency, accessibility and long-term growth.

News Provided by Newsfile via QuoteMedia

Keep reading...Show less
Pinnacle Silver and Gold

Pinnacle Silver and Gold Investor Kit

  • Corporate info
  • Insights
  • Growth strategies
  • Upcoming projects

GET YOUR FREE INVESTOR KIT

Latest Press Releases

Related News