Temporary holding facilities for rebellious hard rock miners trying to organize into unions were referred to as bullpens.

As he became older, he began work as a cowboy for a ranch, in addition to serving as a rock miner.

Colorado miners were divided into two groups: hard rock miners, and coal miners.

The hard rock miners who mined Colorado's gold, silver, and other precious metals had unionized four decades earlier.

An anticlimax: I can't look into it, though it's dimmer than the rock miner's Sun.

He was also a woodcutter, a hard rock miner, and a laborer building mule trains used at the Grand Canyon.

His name was Lou, he was an ex-con and ex-hard rock miner.

Hard rock miners in Shoshone County protested wage cuts with a strike in 1892.

It's been a hard day and it's a while since I was a rock miner.

Searchlight is where Harry Reid watched his father work as a hard rock miner.