Dolores

Chihuahua, Mexico

36.7 Moz silver reserves, proven + probable*
5.1 Moz silver produced*
$3.09 cash costs per ounce*

Large Silver/Gold Mine

Pan American completed an expansion of the Dolores mine in 2017 that featured a pulp agglomeration plant to process high-grade ore from a new underground mine, together with the high-grade portion of the ore from the open-pit mine.

Ownership

100%

Products

Silver and gold doré

OPERATIONS

Mining & Processing

MINE TYPE:	AVERAGE PLANT THROUGHPUT:
Underground/Open-pit	20,000 TPD

Mining at Dolores is by standard open pit methods using shovels, loaders, and haul trucks and by underground methods using sub level open stoping and ramp haulage to the surface. The mine uses conventional cyanide heap leaching to produce gold and silver doré. The high grade portion of the mined material is processed through the pulp agglomeration treatment plant and is conveyed with the crushed lower grade portion of the mined material to the heap leach pads for leaching.

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Operations Dolores GLGYMineral PAS2122 464x638

RESOURCE

Geology & Mineralization

RESERVES:

36.7 Ag Moz and 1,178 Au koz

Dolores is a low sulphidation epithermal deposit with strong structural control. Silver and gold mineralization is hosted in hydrothermal breccias and sheeted vein zones in the order of 5 metres to 10 metres wide. Mineralization occurs along three major structures, including the San Francisco and Alma Maria Breccias, and a sub-vertical shoot where those two breccias meet. Silver and gold mineralization identified on the surface at Dolores lies over an area 4,000 metres long and up to 1,000 metres wide.

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Recent Operating Performance

To learn more about the performance of our Dolores mine, see the Individual Mine Performance section of Pan American Silver’s most recent Management’s Discussion and Analysis.

Quarterly Reports

View Dolores operations

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CORPORATE SUSTAINABILITY

Pan American Silver is determined to conduct its business in a responsible and sustainable manner.

0	84%
significant environmental incidents occurred at our operations	of the revenue generated by our mines remains in the countries where we operate

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Corporate Team

People are Pan American Silver’s most important asset. Our people provide the intelligence, ideas and the energy that drive our industry-leading performance.

7,630	99%
total employees and contractors	of our employees are from the countries where we operate