Guadalupe Production Center Complex

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Mine TypeOpen Pit & Underground
  • Silver
  • Lead
  • Zinc
  • Gold
Mining Method
  • Truck & Shovel / Loader
  • Blast Hole Stoping
Production Start... Lock
SnapshotThe Guadalupe Production Centre is currently processing mineral from four underground mines (Guadalupe, San Ramon, Cuchara, Alacran) and the Veta Negra open pit mine (all within close proximity).
Related Asset


IMPACT Silver Corp. 100 % Indirect

Deposit type

  • Epithermal
  • Vein / narrow vein


The Guadalupe Production Centre is located in the Royal Mines of Zacualpan Silver District, Mexico.

Zacualpan is one of the oldest mining districts in North America with Spanish Colonial mining dating back to at least 1527. In 1531, it was the first mining district in the Americas to be given the title of 'Royal Mines' of Zacualpan by proclamation under the Spanish Crown.

Silver mineralization at Zacualpan is of the class known as silver-rich intermediate sulphidation epithermal vein deposits. Many of the largest and best known silver mines in Mexico belong to this class including mines San Ramon Mine, Mirasol Mine, Cuchara-Oscar Mine and others.

These deposits occur as veins and less commonly as breccia bodies and disseminations or stockworks. Mineralization usually consists of pyrite with variable sphalerite, galena and various silver and gold minerals in a dominantly quartz and carbonate matrix. Vertical extent of economic mineralization averages about 300m but is known to vary from 100m to 960m.

Most economic mineralization in the Zacualpan Mining District is associated with northwest and north-south trending vein structures. These vein structures can often be traced for many kilometers across the district but economic mineralization occurs as mineralized shoots in structurally favourable sections along the trace of the vein structures. The main ore shoots mined over the last 30 years have dimensions of 2-6m in width, 30-150m in length and 230-300m in vertical extent. The most common structurally favourable location for development of such ore shoots is the intersection of northwest and north-south trending vein structures. A second structurally favourable location is on flexures in vein structures.

Another important ore control is host rock. Almost all economic mineralization in the district is hosted by intermediate to mafic volcanics especially andesite and related competent host rocks. Where ore shoots pass into shale or schist, the veins often dissipate into small stringer veins. At the Cuchara Mine early near surface mining of the main ore shoot in andesite ceased when it entered a shale horizon and dissipated. Later operators excavated through the shale back into andesite below and encountered the large well mineralized shoot that has been the subject of extensive mining in modern times.

IMPACT Silver personnel have catalogued over 100 mineral prospects on the Royal Mines of Zacualpan property. They range from small veins to active mining operations.

Mining Methods


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Crushers and Mills

Milling equipment has not been reported.



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Silver oz  ....  Subscribe  ....  Subscribe  ....  Subscribe664,056743,950907,848952,768950,059
Lead t  ....  Subscribe  ....  Subscribe  ....  Subscribe275329481434450
Gold oz  ....  Subscribe  ....  Subscribe  ....  Subscribe367469540511495
All production numbers are expressed as metal in concentrate.

Operational metrics

Daily milling capacity  ....  Subscribe  ....  Subscribe  ....  Subscribe
Daily processing rate  ....  Subscribe  ....  Subscribe  ....  Subscribe386 t475 t532 t500 t467 t
Tonnes milled  ....  Subscribe  ....  Subscribe  ....  Subscribe140,878 t173,217 t194,266 t183,032 t170,509 t

Production Costs

Commodity production costs have not been reported.

Operating Costs

Direct operating costs ($/t milled) CAD 97.5  86.4  80.8  82.6  83.6  76.5  


Revenue M CAD  ....  Subscribe  ....  Subscribe  ....  Subscribe 13.3   13.1   15.4  
Operating Income M CAD  ....  Subscribe  ....  Subscribe -2.3   -4.8   -3.9  
Pre-tax Income M CAD  ....  Subscribe  ....  Subscribe -4.1  
After-tax Income M CAD  ....  Subscribe  ....  Subscribe  ....  Subscribe -4.9   -5.1   -4.6  
EBITDA M CAD  ....  Subscribe  ....  Subscribe -3.8   -1.4   -1.8  
Operating Cash Flow M CAD  ....  Subscribe  ....  Subscribe -0.9   -2.3   0.2  

Heavy Mobile Equipment

Fleet data has not been reported.


Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 28, 2023
....................... Subscription required ....................... Subscription required Subscription required Sep 28, 2023

...... Subscription required 2016

Aerial view:


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