Resources for Patients and their Families

Mesothelioma and Asbestos in Montana


The small town of Libby Montana is arguable "Ground Zero" in the war on asbestos. This is where the W.R. Grace & Company (six executives of which were indicted on criminal charges when sued by a mesothelioma lawyer) operated asbestos and vermiculite mines for 30 years – and the mines themselves had been operating for some sixty years before that.

To date, nearly half the population of Libby has been diagnosed with asbestos disease in addition to the 200 who have died as a result of exposure to asbestos-tainted vermiculite. Vermiculite, by itself a relatively innocuous form of clay, was marketed as Zonolite® and shipped all over the nation. 35 million homes are estimated to contain insulation of this type.

Asbestos Throughout The State

The Libby asbestos mines were not the only industries at which Montana workers were exposed to asbestos. Anaconda is a company that mines and processes copper and aluminum, both of which employ the use of asbestos in all phases.

Montana is also home to three oil refineries, where asbestos packing has been used in pipe fittings as well as the lining of protective clothing worn by refinery workers.

Six Montana power plants have been identified as asbestos problem sites. Asbestos is not only an effective flame retardant; it is resistant to electrical current as well. As a result, many power plant employees run an elevated risk of asbestos related illness. This risk was confirmed in 2003 during a study of chest x-rays in which 13% of the cases were found to have “abnormalities.”

Mesothelioma Statistics in Montana

Lincoln County residents experienced three times the rate of asbestos-related deaths as the next highest county. This was Yellowstone; the next highest rates were found in Cascade and Missoula counties, where most of the population resides.

Outside these urbanized areas, the number of asbestos fatalities in Montana is relatively low; most outside of the Libby area are from mesothelioma.

Montana Cities Where Asbestos Exposure Occurred

Provided below is a list of cities in the state of Montana where asbestos jobsites are known to have been located. If you worked at any of these companies and/or jobsites in Montana, there is a possibility that you may have been exposed to harmful asbestos which is known to cause mesothelioma. Click on any link to view a complete list of jobsites in that city.

Asbestos Exposure at Montana Jobsites

If someone you know has ever worked at one of the Jobsites listed below, they may have been exposed to high levels of asbestos. Asbestos exposure at any one of these Jobsites could put them at risk for developing one of the following asbestos related diseases: malignant mesothelioma (a terminal cancer), asbestos related lung cancer, or asbestosis.


  • Conrey Peacer Mining Company


  • Anaconda Copper Mining Company
  • Anaconda Smelter
  • Saltenberger Plumbing & Heating
  • Sulphuric Acid Plant
  • The Anaconda Company

Black Eagle

  • Anaconda Copper Mining Company
  • Boston and Montana Consolidated
  • Boston and Montana Reduction Department
  • Copper and Silver Mining Company


  • Anaconda Forest Products


  • Bozeman Montana College
  • State College of Agricultural and Mechanical Arts.


  • Northwestern Improvement Company


  • Utah Idaho Sugar Company


  • Legal Tender Mining Company


  • Colstrip Power Plant
  • Montana Power & Light Company
  • Montana Power Company

Columbia Falls

  • Anaconda Aluminum Company
  • Plum Creek Lumber Company


  • Anaconda Aluminum Company


  • Broeder Lumber Company

Cut Bank

  • Glacier Production Corp
  • Union Oil Company

Deer Lodge

  • Chicago, Milwaukee, St Paul & Pacific Railroad

East Helena

  • American Smelting & Refining
  • Asarco Inc


  • Forsyth Elect Light Power Company


  • Stone Container Corporation


  • Geismar Industries Inc


  • Airbase Powerhouse
  • Glasgow Air Force Base
  • US Air Force


  • Glendive Ht. Light and Power Company
  • Montana-Dakota Utilities Company
  • Northern Pacific Railroad Company

Great Falls

  • Boston and Montana Con. Copper and Silver Ming Company
  • Copper and Silver Mining Company
  • Forzley Sales Company
  • General Mills
  • Montana Refining
  • Phillips Petroleum Company
  • United States Army Air Base


  • United States Gypsum Company


  • Helena Power Transmission Company
  • Helena Transmission Company
  • National Mining and Exploring Company
  • Western Ranch Supply Company


  • Brick & Builders Supply
  • C and C Plywood Corp


  • Brick & Builders Supply


  • Cenex Harvest States
  • Cenex Refinery
  • Farmers Union Central Exchange
  • Farmer's Union Co-Op Oil
  • Fuce Plant
  • Laurel Oil and Refining Company
  • Union Tank Car Company


  • J Neil Lumber Company
  • Libby Mines
  • Saint Regis Paper Company


  • Northern Pacific Railway Company

Miles City

  • Water and Electric Light Company

Montana City

  • Kaiser Cement & Gypsum

Mullan Tunnel

  • Northern Pacific Railway Company

Out Bank

  • Union Oil Company


  • Granite Bi Metalic Cons Mg. Company


  • Diehl Lumber Company


  • Cascades Plywood Company
  • Dupois Lumber Company

Red Lodge

  • Northwestern Improvement Company


  • Holly Sugar Corporation
  • Lewis & Clark Power Plant
  • Midland Sugar Company
  • Montana-Dakota Utilities
  • Sidney Montana Powerhouse

Silver Bow

  • Stauffer Chemical Company

Silver Lake

  • Anaconda Copper Ming Company


  • Texaco, Inc.

Thompson Falls

  • Pack River Lumber Company

Three Forks

  • Cyprus Industrial Minerals Company
  • Sierra Talc and Clay Company Inc
  • United Sierra Div Cyprus Mines Corp


  • J. Neils Lumber Company

Warm Springs

  • Montana State Hospital
  • Warm Springs State Hospital


  • Montana Coal and Iron Company


  • Amalgamated Sugar Company


  • Alta Montana Company

Mesothelioma Cancer Centers in Montana

We have compiled a list of mesothelioma cancer centers that are located in Montana. Please click on a cancer center link to obtain more information about the clinical programs offered, professional designations, areas of expertise and how to contact the center.

801 North 29th Street
Billings, MT 59101

Filing an Asbestos Claim in Montana

Don’t lose your right to file a claim. If you or a loved one has been diagnosed with mesothelioma and were exposed to asbestos in Montana, you may be entitled to compensation. If you have a pathology report in hand to support that diagnosis, you should beRead about asbestos eligible for financial assistance.

Resources for Mesothelioma Patients and Their Families

Asbestos Related News in Montana

Medical Marijuana Bill Could Restrict Access to Mesothelioma Patients

The Montana Legislature has proposed a bill that could restrict medical marijuana access to people with mesothelioma and other asbestos-related health problems.

Proposed Laws Jeopardize Mesothelioma Compensation Under Montana State Fund

New state laws could put an end to the Montana State Fund, which helps pay for asbestos-related workers compensation claims. Read more at the Mesothelioma Cancer Alliance.

Asbestos Exposure Across the U.S.


Bowker, Michael. Fatal Deception: The Terrifying True Story of How Asbestos is Killing America. (New York: Touchstone, 2003.)

Cabrera-Santiago, Manuel et al. "Prevalence of Asbestos-Related Disease Among Electrical Power Generation Workers in Puerto Rico." Presentation at American Public Health Association Annual Meeting, 2007.

Curwood, Steve. "Libby, Montana." Living On Earth. Radio broadcast, 17 August 2007.

Mesothelioma Cancer Alliance Blog



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Scientists Discover Possible Genetic Link for Mesothelioma in Young Adults

Medical Marijuana for Cancer: What to Know

Mesothelioma Resource Guide

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