Carissa Gold Mine AML (Wyoming) 
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Bunkhouse Before
Hazardous Materials Assessment
The Cookhouse Before
The Carissa Mill Before
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Bunkhouse After
Hazardous Site Investigation
The Cookhouse After
The Carissa Mill After
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Introduction:
 In August 2003, PHC Reclamation, Inc. (PHC-REC), together with its subconsultants TriHydro Corporation and Forsgren Associates, performed an inventory and assessment of the physical and environmental hazards associated with the Carissa Gold Mine property. The property contains approximately 216.46 acres and is located approximately 30 miles south of Lander, Wyoming in Fremont County, Wyoming.

 The purpose of the Carissa Gold Mine Evaluation is to provide the Wyoming Department of Environmental Quality, Abandoned Mine Land Division (AML) with a report complete with detailed discussions including the investigative and inventory methods used, findings, methods of hazard mitigation, recommendations, and estimated costs to restore the Carissa Gold Mine property to acceptable levels of public safety. The AML will report the findings to the Governor of the State of Wyoming, the Joint Minerals, Business and Economic Development Interim Committee and the Wyoming Parks and Cultural Resources Commission. The report will be utilized to make the determination whether or not the property should be purchased by the State of Wyoming to be preserved as a historical site.
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The Log House Before
Hazardous Materials Assessment
The Mine Office Before
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The Log House After
Hazardous Working
The Mine Office After
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Problem:
 Hazards to Public Safety
 Fourteen (14) distinct areas of disturbance were investigated, the hazards and existing conditions for each area were identified and inventoried, and preliminary costs to remediate all hazards to an acceptable level of public safety were developed. All identified hazards and potential hazards to public safety are described in the ROI. The hazards were grouped into three (3) categories: 
Hazardous mine workings. This group includes shafts, inclines, adits and tunnels, underground slopes and drifts, subsidence areas; surface pits, and open pit mine highwalls.
 Unstable structures, buildings, and equipment. This group includes the Carissa Mill, miscellaneous outbuildings, equipment, and surface and underground storage tanks.
 Hazardous materials. This group includes outside mine waste dumps and processing waste material inside the mill. Samples of these materials were collected and assayed to identify locations, types and concentrations of hazardous materials.
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Historical Background:
The foothills of the Wind River Mountains in central Wyoming are dotted with what remains of the gold rush that hit the area in 1867. Several ghost towns and deserted mines echo the triumph and failures of the masses of 19th century prospectors that populated the area.
At the center of the gold rush were the boomtown of South Pass City, and the nearby Carissa Gold Mine. Discovery of the Carissa Lode in June 1867 resulted in the South Pass gold rush, Wyoming's largest 19th Century mining boom. The area surrounding the Carissa Lode was originally named the Sweetwater Mining District. The Carissa Gold Mine was considered the flagship property of the Sweetwater Mining District throughout the mining booms. It had the largest extent of workings, mined the greatest tonnage, had the largest mill, and was the biggest producer of gold of all the mines in the district. Total gold production is estimated to be between 50,000 to 180,000 ounces.
Nestled in a small valley below the Carissa Gold Mine is South Pass City. As one walks along the main street, it is not hard to imagine the town in its heyday. For the rough and rowdy citizens of the old west, the jail on the south end of town was an absolute necessity. High on a hill east of town was a small one-room schoolhouse, and of course no town in the old west would have been complete without a “Boot Hill.” The South Pass City cemetery is located on a rise just west of town.
This frontier community played an important role in Wyoming politics. In the first territorial legislative, William Bright, a saloonkeeper, mine owner, and a representative from South Pass City wrote and introduced a woman's suffrage bill. Wyoming became the first state or territory to allow women the right to vote and hold office when the Governor signed the bill in December of 1869.
In February of 1870, Esther Morris became the town's Justice of the Peace; this made her the nations first female judge. Her appointment was the subject of controversy in South Pass City, but nevertheless she was successful.
Though South Pass City had a short existence, during its life the Carissa Gold Mine produced millions of dollars in gold and made a handful of people very wealthy. All that remains of the Sweetwater mining district is a few ghost towns and the Carissa Gold Mine. The Carissa Gold Mine and South Pass City area is the perfect place to get an authentic taste of the old west.
In 1966, the Wyoming's 75th Anniversary Commission purchased South Pass City, as a birthday present for the citizens of the state, thus ensuring that the town's storied history would not end up like so many others of its kind. Now a historic site, South Pass City has enjoyed 35 years of unprecedented popularity as a result of the combined efforts of several state agencies. The last 35 years have seen South Pass City become one of the most accurately restored and authentically exhibited historic sites in the West. Seventeen of the site's 23 original structures have been restored and exhibited, with many of the site's 30,000 artifacts exhibited in their original buildings. (Source: State of Wyoming State Parks and Cultural Resources Web Page).
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