Internet Explorer 11 is not supported

For optimal browsing, we recommend Chrome, Firefox or Safari browsers.

120 billion tons

The amount of coal below Montana's surface, which accounts for nearly one-quarter of the known coal reserves in the United States.

The amount of coal below Montana's surface, which accounts for nearly one-quarter of the known coal reserves in the United States.

Caroline Cournoyer is GOVERNING's senior web editor.
Special Projects