Pan American owns 100% of the large polymetallic deposit discovered in 2018 through brownfield exploration near its La Colorada mine.

On December 18, 2023, Pan American announced the Preliminary Economic Assessment (“PEA”) of the La Colorada Skarn project. The PEA currently envisions a 50,000 tonnes per day sub-level cave mining method and a conventional 50,000 tonnes per day capacity selective zinc and lead flotation processing plant and dry-stack tailings facility. Production is estimated to average 17.2 million ounces of silver, 427 thousand tonnes of zinc and 218 thousand tonnes of lead annually during the first 10 years of an estimated 17-year mine life. Please see the news release below dated December 18, 2023 for further details.

 

 

Advanced Exploration Project


173.6
MT
Indicated mineral resource estimate*

103.6
MT
Inferred mineral resource estimate*


News Releases

Pan American provided drill results for the La Colorada discovery in the following news releases:

December 18, 2023

Pan American Announces Preliminary Economic Assessment of the La Colorada Skarn Project

Production averaging 17.2 million ounces of silver, 427 thousand tonnes of zinc and 218 thousand tonnes of lead annually during the first 10 years 50,000 tonnes per day sub-level cave mining method and conventional flotation plant 17-year mine life and continued exploration upside, with more than 40,000 metres of recent drilling not included in current […]

Read More about Pan American Announces Preliminary Economic Assessment of the La Colorada Skarn Project


May 2, 2023

Pan American Silver Reports Additional High-Grade Drill Results From the La Colorada Skarn Project

VANCOUVER, British Columbia–(BUSINESS WIRE)– Pan American Silver Corp. (NYSE: PAAS) (TSX: PAAS) (“Pan American” or the “Company”) today released results for 15 new infill and exploration drill holes totaling 14,122 metres at the Company’s 100% owned La Colorada Skarn project in Zacatecas, Mexico. La Colorada Skarn drill holes May 2023 (Graphic: Business Wire) The most […]

Read More about Pan American Silver Reports Additional High-Grade Drill Results From the La Colorada Skarn Project


November 1, 2022

Pan American Silver extends high-grade silver zone at the La Colorada Skarn project

Pan American Silver Corp. (NASDAQ: PAAS) (TSX: PAAS) (“Pan American” or the “Company”) today released results for 45 new infill and exploration drill holes totaling 34,239 metres at the Company’s…

Read More about Pan American Silver extends high-grade silver zone at the La Colorada Skarn project


September 14, 2022

Pan American Silver Reports Large Increase to the Mineral Resource Estimate for its La Colorada Skarn Deposit

Pan American Silver Corp. (NASDAQ: PAAS) (TSX: PAAS) (“Pan American”, or the “Company”) today announced an updated mineral resource estimate for its 100% owned La Colorada Skarn deposit in…

Read More about Pan American Silver Reports Large Increase to the Mineral Resource Estimate for its La Colorada Skarn Deposit


July 21, 2022

Pan American Silver drills highest grade intercept to date on the La Colorada Skarn project

Pan American Silver Corp. (NASDAQ: PAAS) (TSX: PAAS) (“Pan American” or the “Company”) today released results for 22 new infill and exploration drill holes totaling 18,071 metres that further…

Read More about Pan American Silver drills highest grade intercept to date on the La Colorada Skarn project


May 9, 2022

Pan American Silver extends mineralization at the La Colorada Skarn project

Pan American Silver Corp. (NASDAQ: PAAS) (TSX: PAAS) (“Pan American” or the “Company”) today provides results for 43 new infill and exploration drill holes totaling 38,460 metres, all of which…

Read More about Pan American Silver extends mineralization at the La Colorada Skarn project


February 24, 2022

Pan American Silver provides update on exploration drilling of the La Colorada Skarn

Pan American Silver Corp. (NASDAQ: PAAS) (TSX: PAAS) (“Pan American” or the “Company”) today provides results for 20 new infill and exploration holes, all of which contain multiple skarn and…

Read More about Pan American Silver provides update on exploration drilling of the La Colorada Skarn


May 12, 2021

Pan American Silver provides drill results and a project update for the La Colorada Skarn deposit

Pan American Silver Corp. (NASDAQ: PAAS) (TSX: PAAS) (“Pan American”, or the “Company”) today provided results for 28 additional holes drilled at the La Colorada skarn deposit and an update of the…

Read More about Pan American Silver provides drill results and a project update for the La Colorada Skarn deposit


August 4, 2020

Pan American Silver increases La Colorada skarn deposit mineral resource estimate to 100.4 million tonnes and provides drilling update

Pan American Silver Corp. (NASDAQ: PAAS) (TSX: PAAS) (“Pan American”, or the “Company”) today announces an updated inferred mineral resource estimate for its La Colorada skarn deposit in…

Read More about Pan American Silver increases La Colorada skarn deposit mineral resource estimate to 100.4 million tonnes and provides drilling update


February 13, 2020

Pan American Silver Reports Recent Drill Results for the La Colorada Skarn Discovery

Pan American Silver Corp. (NASDAQ: PAAS) (TSX: PAAS) (“Pan American”, or the “Company”) today announced results for 14 holes drilled on the La Colorada polymetallic skarn discovery in Mexico…

Read More about Pan American Silver Reports Recent Drill Results for the La Colorada Skarn Discovery


October 30, 2019

Pan American Silver Reports Drill Results from the La Colorada Skarn Discovery with Intercepts up to 379 Metres

Pan American Silver Corp. (NASDAQ: PAAS) (TSX: PAAS) today announced results from 14,300 metres of drilling completed during the third quarter of 2019 on the La Colorada skarn discovery in Mexico….

Read More about Pan American Silver Reports Drill Results from the La Colorada Skarn Discovery with Intercepts up to 379 Metres


August 1, 2019

Pan American Silver Reports Continued Exploration Success at La Colorada

Pan American Silver Corp. (NASDAQ: PAAS) (TSX: PAAS) today announced results from the exploration drilling completed over the past three months at its 100% owned La Colorada skarn discovery in Mexico.

Read More about Pan American Silver Reports Continued Exploration Success at La Colorada


May 8, 2019

Pan American Silver Reports First Quarter 2019 Results

Guidance Updated to Include Mines Acquired Through Tahoe Transaction All amounts expressed in U.S. dollars unless otherwise indicated. Unaudited tabular amounts are in thousands of U.S. dollars…

Read More about Pan American Silver Reports First Quarter 2019 Results


February 21, 2019

Pan American Silver Reports Mineral Reserves of 280 Million Ounces and Continued Success at the La Colorada Skarn Discovery

All financial figures are expressed in US$ unless otherwise indicated. The reserve and resource information provided in this news release is only for Pan American’s operations and do not reflect…

Read More about Pan American Silver Reports Mineral Reserves of 280 Million Ounces and Continued Success at the La Colorada Skarn Discovery


Technical Report

Estimated Mineral Resource*

ClassificationTonnes (millions)ZN %PB %Ag G/T
Indicated173.62.791.3233
Inferred103.62.471.0335
See Footnotes Below

Skarn Geology Video

Skarn Discovery Video

* Notes:

  1. The effective date of the mineral resources estimate is December 15, 2023. The geological model was completed in December 2022 and diamond drilling from 2023 is not included in this estimate.
  2. Estimation and reporting of mineral resources were carried out in accordance with Canadian Institute of Mining, Metallurgy and Petroleum (“CIM”) guidelines.
  3. Mineral resources have been classified into indicated and inferred confidence categories.
  4. Mineral resources have reasonable prospects for eventual economic extraction demonstrating sufficient spatial continuity of mineralisation constrained within a potentially mineable shape. Mineral resources that are not mineral reserves do not have demonstrated economic viability. No mineral reserves are reported at this time for the La Colorada Skarn project.
  5. Prices used to report mineral resources were: $22 per ounce of silver, $2,800 per tonne of zinc and $2,200 per tonne of lead.
  6. An estimated NSR (in US$/t) was calculated using metallurgical recoveries of 87.4% Ag, 88% Pb and 93% Zn with mineral concentrate qualities of 67% Pb in lead concentrate and 60% Zn in zinc concentrate, obtained from metallurgical testing. Estimates for transport, payability and refining/selling costs, based on experience and long-term views of the marketing, treatment and refining of these types of mineral concentrates, were included.
  7. Reasonable prospects for eventual economic extraction were assessed by determining the total in-situ tonnes and metal grades constrained inside volumes that are based on a SLC mining method. To determine the constraining SLC shapes an initial elevated cutoff value of $50/t NSR was applied.  Then geotechnical, geometry and caving rules were applied to ensure practical mining shapes and sequences were achieved. Each level, in each zone, was individually tested for overall economics, and then tested as part of the caving sequence. The resulting constraining shapes were then considered to be practical mining outlines. The tonnes and grades are inclusive of the must-take low grade material within the volume. No other mining recovery, ring recovery, dilution or mineral losses have been applied.
  8. This mineral resource estimate was prepared under the supervision of, or was reviewed by, Christopher Emerson, FAusIMM, Vice President Exploration and Geology, who is a Qualified Person as that term is defined in NI 43-101.
  9. Grades are shown as contained metal before mill recoveries are applied. The Company has undertaken a verification process with respect to the data disclosed in this news release.
  10. A total of 298 diamond drill holes with a total length of 242,000 metres were used in the geological interpretation and resource estimate. Several old historic drill holes were included in the modeling. Drilling of the La Colorada Skarn deposit has been completed from both surface and underground drill platforms. 
  11. All drill hole samples used in the mineral resource estimate have been previously reported  in news releases dated October 23, 2018, February 21, 2019, May 8, 2019, August 1, 2019, October 30, 2019,  February 13, 2020, August 4, 2020, May 12, 2021, November 10, 2021, February 24, 2022, and May 9, 2022.