Golden Minerals Acquires Navegantes Silver Exploration Project

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GOLDEN, Colo., Nov. 15, 2018 (GLOBE NEWSWIRE) -- Golden Minerals Company (NYSE American and TSX: AUMN) (“Golden Minerals”, “Golden” or “the Company”) is pleased to announce it has acquired the Navegantes project in southern Chihuahua state, Mexico, where recent surface and underground sampling have returned high-grade silver values from a series of epithermal silver-base metal veins outcropping on the property.

Navegantes Project Location
  Navegantes Project Location
Navegantes Nearby Major Mines and Development Projects
  Navegantes Nearby Major Mines and Development Projects
Navegantes Sample Locations and Silver Assays
  Navegantes Sample Locations and Silver Assays


Navegantes sampling highlights:

  • 1 meter (“m”) assaying 1,585.5 g/t Ag
  • 1.45m assaying 759.2 g/t Ag
  • 1.1m assaying 638.9 g/t Ag
  • 2.1m assaying 472 g/t Ag

The project consists of six concessions totaling 521 hectares and is located approximately 60km northwest of the San Francisco del Oro-Santa Barbara District where the company’s Santa Maria project is located. Initial sampling and mapping have identified extensive zones of oxidized and leached epithermal quartz veining over an 800m strike length that has delivered high silver grades.

A photo (Figure 1: Navegantes project location) accompanying this announcement is available at:

Figure 1, “Navegantes project location”, may also be viewed here:

Mr. Warren Rehn, President and Chief Executive Officer of Golden Minerals, said; “Navegantes is an exciting prospect that hasn’t been systematically explored even though it is located in an area of several modern major discoveries. We were pleasantly surprised by the high-grade surface silver assays from heavily weathered and leached veins outcropping on the surface.

“This project was identified by our generative exploration team that is searching for under-explored projects in central Mexico to allow the company to add high-quality, early-stage projects that can be advanced quickly to create value for our shareholders.”

A photo (Figure 2: Major mines and development projects close to the Navegantes project) accompanying this announcement is available at:

Figure 2, “Major mines and development projects close to the Navegantes project”, may also be viewed  here:

The mineralization occurs as iron oxides, within quartz veins that range up to 2m in width and are exposed over strike lengths in excess of 800m. Based on historic mines and prospects in the San Francisco del Oro-Santa Barbara and Hidalgo de Parral districts, we believe there exists excellent potential to define significant silver mineralization at depth.

Golden Minerals collected 103 surface and underground chip channel and grab samples from vein exposures, mine workings and mine dumps. Results from this initial sampling program are summarized in Table 1, with surface sample results shown in Figure 3.

Table 1: Results from the 2018 Navegantes sampling program
Channel ID Vein Width (m) Ag (g/t) Pb (ppm) Zn (ppm)
NAV_U_01 San Pedro 1.5 14 74 339
NAV_U_02 San Pedro 1.3 6 33 221
NAV_U_03 San Pedro 1.2 8 25 145
NAV_U_04 San Pedro 2.5 73 28 157
NAV_U_05 San Pedro 0.8 519 1739 328
NAV_U_06 San Pedro 1.1 352 1055 1295
NAV_U_07 San Pedro 1.2 178 113 706
NAV_U_08 San Pedro 1.0 1586 70 175
Inc. San Pedro 0.7 1965 69 189
NAV_U_09 San Pedro 1.5 759 69 79
Inc. San Pedro 0.4 1600 72 79
Nav_01 San Pedro 1.3 85 15804 1055
Nav_02 San Pedro 2.2 16 125 133
Nav_03 Navegantes 2.1 472 22 199
Inc. Navegantes 0.9 608 15 200
Nav_04 Navegantes 2.0 201 837 421
Inc. Navegantes 1.0 268 655 186
Nav_05 Navegantes 1.5 37 103 95
Nav_06 Navegantes 1.4 261 28 218
Inc. Navegantes 0.6 406 33 261
Nav_07 Navegantes 1.4 48 257 223
Nav_08 Navegantes 1.5 73 851 179
Nav_09 Navegantes 1.7 14 325 384
Nav_10 San Pedro 1.1 639 31 104
Inc. San Pedro 0.6 1135 43 165
Nav-16 Dump Sample   197 7690 687
Nav-17 Dump Sample   205 5270 522
Nav-18 Dump Sample   438 4030 458
Nav-19 Dump Sample   606 2160 355
Nav-20 Dump Sample   951 4870 446
Nav-21 Dump Sample   475 469 251
Nav-31 Dump Sample   358 22 209
Nav-52 Dump Sample   285 2180 637
Nav-53 Dump Sample   211 944 386
Nav-51 New vein 0.3 134 1920 165
Nav-61 New vein 0.9 268 28 147
SP-1 San Pedro 0.9 278 26 159

Complete results are available on the Golden Minerals website at, as are  more detailed surface maps.

A photo (Figure 3: Navegantes sample locations and silver assays) accompanying this announcement is available at

Figure 3, “Navegantes sample locations and silver assays”, may also be viewed here:

Next Steps

Golden is currently conducting additional mapping and sampling on the property to identify prospective targets for follow-up testing by trenching and/or drilling.

About Navegantes

Golden Minerals holds an option to purchase six concessions totaling 521 hectares by paying $0.4M over three years.  The property is located in southwestern Chihuahua state, in northern Mexico. The project covers two vein systems (Navegantes and San Pedro-San Francisco) as well as a number of smaller subsidiary veins. The property is located 68km northwest of Grupo Mexico’s Santa Barbara operation (6,000 tonnes per day) and 63km northwest of Frisco’s San Francisco Mine (4,000 tonnes per day). The project is also 61km south of Sunshine Mining’s Los Gatos project. The Navegantes property covers an underexplored epithermal precious silver-base metal district that shows similar mineralization to the adjacent Parral Mining District. The Company, through systematic exploration, hopes to identify significant high-grade mineralization. 

Review by Qualified Person and Quality Control

The technical contents of this press release have been reviewed by Warren M. Rehn, M.Sc., a Qualified Person for the purposes of Canadian National Instrument 43?101. Mr. Rehn has over 33 years of mineral exploration experience and is a QP member of the Mining and Metallurgical Society of America.

To ensure reliable sample results, Golden Minerals uses a quality assurance/quality control program that monitors the chain?of?custody of samples and includes the insertion of blanks, duplicates and reference standards in each batch of samples. Core is photographed and sawn in half with one half retained in a secured facility for verification purposes. Sample preparation (crushing and pulverizing) is performed at an independent ISO 9001:2001 certified laboratory in Chihuahua or Zacatecas, Mexico. Prepared samples are direct?shipped to an ISO 9001:2001 certified laboratory in Canada.

About Golden Minerals

Golden Minerals is a Delaware corporation based in Golden, Colorado. The Company is primarily focused on advancing its El Quevar silver property in Argentina and on acquiring and advancing mining properties in Mexico with emphasis on areas near its Velardeña processing plants.

Forward?Looking Statements

This press release contains forward?looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended and Section 21E of the Securities Exchange Act of 1934, as amended, and applicable Canadian securities legislation, including statements relating to the Company’s plans for systematic exploration of the Navegantes claims and the possibility of identifying significant high-grade mineralization. These statements are subject to risks and uncertainties, including changes in interpretations of geological, geostatistical, metallurgical, mining or processing information and interpretations of the information resulting from future exploration, analysis or mining and processing experience, new information from exploration or analysis, unexpected variations in mineral grades, types and metallurgy, fluctuations in silver metal prices, increases in costs and declines in general economic conditions, and changes in political conditions, in tax, royalty, environmental and other laws in Mexico, and financial market conditions. Golden Minerals assumes no obligation to update this information. Additional risks relating to Golden Minerals may be found in the periodic and current reports filed with the Securities and Exchange Commission by Golden Minerals, including the Company’s Annual Report on Form 10?K for the year ended December 31, 2017.

Karen Winkler
Director of Investor Relations
(303) 764-9170
SOURCE: Golden Minerals Company