Montana is the fourth largest state geographically, and is ranked forty-fourth in terms of population. The principal source of asbestos exposure in Montana is the mining industry. Other sources include the oil and energy production industries and paper mills.

In 2009, the U.S. Environmental Protection Agency declared an “emergency” in Libby, Montana. Beginning in the early 1900’s, W.R. Grace operated a vermiculite production plant in Libby. Vermiculite contains asbestos, and was predominantly used in insulation products and ceiling material.

Residents of Libby and Troy were exposed to asbestos-containing vermiculite for years, including persons who were married to W.R. Grace employees and who were exposed to asbestos dust brought home by their spouses. As of 2009, the E.P.A. has committed over $300 million for medical and cleanup costs. Unfortunately, hundreds of residents have died due to vermiculite-related asbestos exposure.


Below is a list of occupations that put Montana workers at a known risk of asbestos exposure. If you worked in one of these occupations in the 1980s or earlier, there is a good chance that you were exposed to asbestos:

  • Boilermakers
  • Brick and stone masons
  • Construction workers
  • Drywall tapers
  • Electric power linemen and cable men
  • Electricians
  • Engineers
  • Furnace men, smelter-men and pourers
  • Heavy equipment mechanics
  • Industrial plant workers
  • Insulators
  • Iron workers
  • Laborers
  • Machine operators
  • Millwrights and mill workers
  • Painters
  • Pipefitters
  • Plasterers
  • Plumbers
  • Power plant workers
  • Roofers and slaters
  • Sheetmetal workers
  • Welders


The following is a list of some of the Montana job sites where there is a potential use of asbestos products. If you or a family member worked at one of these places, you may be at a heightened risk of asbestos disease.

If you believe that you may have been exposed to asbestos at your own job, please contact a mesothelioma attorney for more information. There are many other job sites in Montana where asbestos was used.


  • Anaconda Copper Mining Company
  • W.R. Grace Mine
  • Original Butte Mining Company
  • Moulton Mining Company
  • Anaconda Copper Mining Company
  • Anaconda Aluminum Plant

Power Plants

  • Airbase Powerhouse
  • Montana Power Company
  • Sidney Montana Powerhouse
  • Montana Dakota Utilities Company
  • Phillips Petroleum Company
  • Union Oil
  • Texaco, Inc.


  • American Smelting & Refining Company
  • Anaconda Aluminum Company
  • Anaconda Company
  • Cenex Refinery
  • J. Neil Lumber Company

Paper Mills

  • Paper Mill & Digester
  • Waldorf Paper Company
  • Hoerner Waldorf Paper Products


  • Fiberglas Engineering and Supply Company
  • J. Neil Lumber Company
  • St. Regis Paper Company
  • Hoerner Waldorf Corporation

Other Industry

  • Boeing Company
  • Carl Weissman & Sons
  • Glasgow Air Force Base
  • Great Northern Tool & Supply Co.
  • Victor Chemical Company
  • Fuce Plant
  • Sulphuric Acid Plant


Mesothelioma is a deadly cancer of the lining of the lungs and abdomen, which is caused by asbestos exposure. Like other asbestos diseases, mesothelioma has a long latency period. This means that a person usually develops mesothelioma after the initial exposure to asbestos – usually between 10 and 50 years later. Due to this latency period, the number of Montana mesothelioma deaths continues to rise.


If you have been diagnosed with mesothelioma, and you believe you were exposed to asbestos in Montana, it is important that you contact a skilled attorney with experience in asbestos litigation. In addition, time is of the essence, because you have a limited amount of time to file a lawsuit.

We urge you to contact one of our mesothelioma lawyers for a free consultation. We can help you investigate the sources of your exposure, and determine what companies were responsible.