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Radon Caves

Radon Caves

Find out what the excitement is all about.  Visit one of Montana's Radium Mines.

Find out what the excitement is all about.  Visit one of Montana's Radium Mines.




1. The Radon Health Mines of Boulder

 Boulder, Helena Area
Montana is the radon capital of the United States, and the Boulder/Basin area is the radon capital of Montana. More Info

2. Merry Widow Mine

 Basin, Helena Area
The Merry Widow Health Mine is a tunnel into a mountain where radon gas is naturally emitted that gives relief from diverse ailments. There are lodging units available. More Info

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