Kensington, Alaska

100% Gold Operation

Overview

The Kensington underground gold mine and associated milling facilities are located within the Berners Bay Mining District on the east side of Lynn Canal about 45 miles north-northwest of Juneau, Alaska. The project is wholly owned and operated by Coeur Alaska, Inc., a wholly owned subsidiary of the Company.

The Kensington mine commenced commercial production on July 3, 2010. The mine is accessed by a horizontal tunnel and utilizes conventional and mechanized underground mining methods. Ore is processed in a flotation mill that produces a concentrate which is sold to third party smelters. Waste material from the flotation process is deposited in an impoundment facility on the property or combined with cement and used as backfill in the mine. Power is supplied to the site by on-site diesel generators. Access to the project is either by air or boat.

Location Map Kensington
Stage: Production
Location: Juneau, Alaska (Southeast Alaska)
Type: Underground Mine
Metals: Gold
Product: Gold Concentrate
Ownership: 100%
Land position: +12,400 acres (50.2 square kilometers)
Production: 201​5 = ​126,266 oz Au
​Adjusted costs applicable to sales1 per gold ounce: $​798
Proven and probable reserves2: 560,000 oz Au 
Measured and indicated resources2: ​518,000 oz Au
Inferred resources2: ​690,000 oz Au
Employees: 3​2​1

Operations

The Kensington underground gold mine and associated milling facilities are located on the east side of the Lynn Canal about 45 miles north-northwest of Juneau, Alaska. The Company controls 100% of the mine through Coeur Alaska. The mine is accessed by a horizontal tunnel and utilizes conventional and mechanized underground mining methods. Ore is processed in a flotation mill that produces a concentrate that is sold to third party smelters.  

View the latest Technical Report for the Kensington mine.

Geology and Exploration Potential

The Kensington ore deposit consists of multiple, gold-bearing mesothermal, quartz, carbonate and pyrite veins and discrete quartz-pyrite veins hosted in Cretaceous-aged Jualin diorite. Gold occurs as native grains in quartz veins and is associated with pyrite and various gold-telluride-minerals associated with the pyrite mineralization.

The mine area consists of two contiguous properties, Kensington and Jualin, which constitute the majority of the Berners Bay Mining District. The Kensington property includes the Kensington and Raven mineral deposits, which contain all the mineral resources and reserves currently defined, as well as other gold occurrences such as Eureka and Elmira. The adjacent Jualin property includes the Jualin, Comet, Kimberly and other mineral occurrences. Both Kensington and Jualin properties are held through a combination of state and federal patented and unpatented lode mining claims either owned directly or under lease. All of the defined mineral resources and reserves are contained in the Kensington block.

Exploration in 2015 totaled $4.0M at Kensington and resulted in an initial resource estimate at the Jualin deposit, which was disclosed in a preliminary economic assessment in April 2015. 2016 exploration will focus on underground drilling at Jualin Vein #4 to further define and expand mineralization, as well deeper portions of the Kensington ore body and the high-grade Raven zone.

  1. Non-GAAP financial measure. Please see Reconciliation to GAAP table.
  2. Please see Reserves and Resources statement.

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Coeur Mining, Inc.
104 S. Michigan Avenue, Suite 900 Chicago, Illinois, 60603 - (312) 489-5800