Montana: what the public record shows.
1,366 documented environmental records across 56 counties, published by federal and state agencies and mapped beside the health measures those agencies release. Locations and rates only — nothing here shows that anything caused anything else.
Documented records in Montana
Published health measures
| Measure | Years | Areas |
|---|---|---|
| All-cause infant mortality | 1989–2022 | 57 |
| Child and youth mortality (ages 1-19) | 2019–2022 | 57 |
| Low birthweight (<2,500 g) | 2016–2022 | 57 |
| Premature death (years of potential life lost before 75) | 2020–2022 | 57 |
| Teen births (ages 15-19) | 2016–2022 | 57 |
Rates are area-level and published by their source. Where a source suppressed a small count, it stays unpublished here.
Events on the public record
Libby, Lincoln County, MT · 1919–2002
Libby vermiculite asbestos contamination
A vermiculite mine released asbestiform amphibole fibres across the town for decades, producing one of the largest community asbestos exposures in the United States.
Who to contact in Montana
State agency
Montana Department of Environmental Quality
State agency for mining permits, water quality and remediation.
Nonprofit / community group
Northern Plains Resource Council
Member-run organization supporting landowners near coal and oil development.
Nonprofit / community group
Montana Environmental Information Center
State watchdog on mining permits, cleanup and water pollution.
Nearby coverage