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Mexico
Cienega Mine

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 Location:
206 km NW from Durango, Durango, Mexico
  Address:
Guadalupe Patoni No. 333, Colonia Del Maestro, Dom. Conocido Ciénega de Ntra. Señora
Santiago Papasquiaro
Durango, Mexico
34240
Phone  ...  Subscription required
Fax01-(674)-864-60-13
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News
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Overview

StageProduction
Mine TypeUnderground
Commodities
  • Gold
  • Silver
  • Zinc
  • Lead
Mining Method
  • Longhole open stoping
Processing
  • Flotation
  • Leaching plant / circuit
Mine Life3.4 years (as of Jan 1, 2020)

Owners

Source: p. 62,256
CompanyInterestOwnership
Fresnillo plc. 100 % Indirect
Deposit Type

  • Epithermal
  • Vein / narrow vein

Summary:

The La Ciénega gold-silver veins are low-sulfidation, epithermal-type deposits related to a rhyolitic flow-dome complex. Ore deposits in the La Ciénega district consist of a series of subparallel, northwest– southeast-trending veins which are hosted in andesitic and rhyolitic rocks that belong to the Tertiary-age Upper and Lower Volcanic sequences. The veins are vertical to steeply dipping structures which consist of quartz, generally containing gold-silver and less than 10 percent combined lead, zinc, and copper sul-fide, and sulfosalt minerals. Supergene enrichment is present in the upper parts of the known ore shoots.

Mining Methods

  • Longhole open stoping

Summary:

Ciénega is a gold-silver mine located near the small community of Nuestra Señora de la Ciénega. Long-hole drilling mining method is utilized at Ciénega.

Crushing and Grinding

Processing

  • Flotation
  • Leaching plant / circuit

Source: Subscription required

Summary:

The ore from mine is processed at Cienega flotation and leaching plant.

Recoveries & Grades:

CommodityParameter202020192018201720162015
Gold Head Grade, g/t  ......  Subscription required  ......  Subscription required  ......  Subscription required1.821.842.07
Silver Head Grade, g/t  ......  Subscription required  ......  Subscription required  ......  Subscription required151.5143.5129
Zinc Head Grade, %  ......  Subscription required  ......  Subscription required  ......  Subscription required0.9810.8
Zinc Concentrate Grade, %  ......  Subscription required  ......  Subscription required  ......  Subscription required5052.251.1
Lead Head Grade, %  ......  Subscription required  ......  Subscription required  ......  Subscription required0.740.680.61
Lead Concentrate Grade, %  ......  Subscription required  ......  Subscription required  ......  Subscription required38.337.739.5

Production:

CommodityProductUnits2020201920182017201620152014
Gold Metal oz  ......  Subscription required  ......  Subscription required66,86971,94772,85185,662108,211
Silver Metal oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Zinc Metal t  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Zinc Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Lead Metal t  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Lead Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Operational Metrics:

Metrics202020192018201720162015
Tonnes milled  ......  Subscription required  ......  Subscription required  ......  Subscription required1,302 kt1,275 kt1,329 kt
Daily milling capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required4 kt4 kt4 kt
Annual milling capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required1,340 kt1,340 kt1,340 kt
Subscription required - Subscription is required.

Reserves at December 31, 2020:
The cut-off grades for the Ciénega reserve vary between 186 and 411 g/t AgEq.
The cut-off grade for Ciénega’s mineral resources varies between 181 and 288 g/t AgEq.

CategoryTonnage CommodityGradeContained Metal
Probable 4,523 kt Gold 2.36 g/t 343 koz
Probable 4,523 kt Silver 232 g/t 33,710 koz
Probable 4,523 kt Zinc 1.65 % 75 kt
Probable 4,523 kt Lead 1.11 % 50 kt
Measured 4,482 kt Gold 4.7 g/t 678 koz
Measured 4,482 kt Silver 198 g/t 28,481 koz
Measured 4,482 kt Zinc 2.01 % 90 kt
Measured 4,482 kt Lead 1.4 % 63 kt
Indicated 6,047 kt Gold 2.31 g/t 448 koz
Indicated 6,047 kt Silver 228 g/t 44,346 koz
Indicated 6,047 kt Zinc 1.75 % 106 kt
Indicated 6,047 kt Lead 1.11 % 67 kt
Measured & Indicated 10,529 kt Gold 3.33 g/t 1,126 koz
Measured & Indicated 10,529 kt Silver 215 g/t 72,828 koz
Measured & Indicated 10,529 kt Zinc 1.86 % 196 kt
Measured & Indicated 10,529 kt Lead 1.23 % 129 kt
Inferred 11,872 kt Gold 1.68 g/t 640 koz
Inferred 11,872 kt Silver 206 g/t 78,805 koz
Inferred 11,872 kt Zinc 1.07 % 128 kt
Inferred 11,872 kt Lead 0.65 % 77 kt

Commodity Production Costs:

CommodityUnits202020192018201720162015
Cash costs Gold USD  ......  Subscription required†  ......  Subscription required† 25.9 / oz† -163.7 / oz† -217.19 / oz† 245.49 / oz†
All-in sustaining costs (AISC) Gold USD  ......  Subscription required†  ......  Subscription required† 1,414 / oz† 691.43 / oz† 428 / oz† 710.37 / oz†
† Net of By-Product.
Subscription required - Subscription is required.

Operating Costs:

Units20202019201820172016201520142013
Total operating costs ($/t milled) USD 76.778.370.866.555.56370.870.8

Financials:

Units202120202019201820172016
Capital expenditures (planned) M USD  ......  Subscription required
Capital expenditures M USD  ......  Subscription required  ......  Subscription required72.9  46.5   32.7  
Revenue M USD  ......  Subscription required  ......  Subscription required187.1  198.3   185  
Gross profit M USD  ......  Subscription required  ......  Subscription required79.2  97.1   100.1  
Subscription required - Subscription is required

Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required May 16, 2021
....................... Subscription required ....................... Subscription required Subscription required May 16, 2021
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2020
Subscription required Subscription required Subscription required 2019
Subscription required Subscription required Subscription required 2018
Subscription required Subscription required Subscription required 2017
Subscription required Subscription required Subscription required 2016
Subscription required Subscription required Subscription required 2015

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2020
................................... Subscription required 2019
Annual Report 2018
Annual Report 2017
Annual Report 2016
Corporate Presentation 2016
Other 2016
Annual Report 2015
Corporate Presentation 2015
Annual Report 2014
Year-end Mineral Reserves 2014
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Aerial view:

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