2003 Mining History Association Field Trip

 

Cresson Mine

Cripple Creek, Colorado

June 6, 2003

Tour Hosts: Cripple Creek & Victor Gold Mining Company

TOUR UPDATE 2012

Much progress has been made at the Cresson Mine since it was visited by the MHA in 2003. The Cripple Creek and Victor Mining Company has graciously provided the photos in the gallery below which show mining and processing operations as they were in 2012. At that time, permitting was underway to further extend the mine’s life.

PHOTO GALLERY 2 of 2

 

 


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(Above)  Blast hole drilling rigs prepare holes for explosives at the Cresson Mine.  Gold particles in the ore are only 20 microns in size.  The drill cuttings are sampled to differentiate ore from waste rock. The summit of Pike’s Peak can be seen in the background.

 

(Right)  The Cresson Pipe, one of the geologic features associated with the gold mineralization, is exposed in the side of the open pit mine.

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Blasting breaks the ore or overburden from a mining bench the open pit.

A front-end loader fills haulage trucks in the Cresson Mine open pit.  The ore is then hauled to the crusher.  Waste rock is hauled to a disposal area.

The new crushing plant reduces the size of the ore before it is placed in the leaching areas.

A haul truck dumps a load of ore at the primary crusher.

Snow capped peaks provide a spectacular backdrop for a view of high leach dumps under construction.

Drip lines distribute leaching fluids on the top of the leach dumps.  The gold-bearing leachate is collected at the bottom of the dumps and pumped to the gold recovery plant.

 


Gold from the leachate is adsorbed on carbon particles in the gold recovery circuit.

Gold is stripped from the carbon and forms a gold-rich “mud” which is sent to the smelting furnace.
The final product from the gold furnace is a pour of gold doré (door-ray) at the Cresson Mine. Gold and silver are separated in a further refining step. Seeding and tree planting is part of the reclamation process for areas disturbed by mining. 

Photo Credits: Cripple Creek & Victor Gold Mining Company

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