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Miner putting bolts into the roof of a mine for support.

1. Miner Roof Bolting

Miner putting bolts into the roof of a mine for support.

2. Miner Roof Bolting

Two miners work on putting in roof bolts in the Pittsburgh Seam. Timber jack used to hold the roof while bolting.

3. Miners Roof Bolting

Two miners work with a Joy roof bolt drill at Jamison No. 9.

4. Joy Roof Bolt Drill at Jamison No. 9

Two miners put bolts in to the mine rood at Jamison No. 9.

5. Miners Roof Bolt Drilling in Jamison No. 9 Mine

Miner putting bolts into the roof of a mine for support.

6. Miner Roof Bolting