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Coal conveyor systems run throughout the hillside.

25. Raw Coal Conveyor System

Caption on back reads, 'Making a cut in the coal face is this Mastodon of the machine age - an underground cutter.  Rubber tired for mobility, and mounting a 9-foot cutting blade armed with whirring steel bits, it can cut a full 360 degree arc.  This and similar machines give America's bituminous coal mines almost unlimited capacity for production.'

26. Miners Operating a Cutting Machine at Mine No. 32, Consolidation Coal Company, Owings, W. Va.

A miner operates an electric shuttle car in the mine.

27. Miner Operating an Electric Shuttle Car

28. Shot Down Coal, Mine No. 63

A miner moves a fully loaded shuttle car down the mine shaft.

29. Loaded Coal Shuttle Car

A miner empties his shuttle car.

30. Shuttle Car Discharging Coal

Men work with core drilling equipment on a hillside.

31. Core Drilling

32. Miner Explaining Coal Conveyor to Group on a Mine Tour

33. Visitors Riding Mine Cars Into Mine

Group portrait of children standing in front of the large shovel 'The Mountaineer'.

34. Youngsters in front of the Mountaineer Shovel

Five men standing in the Mountaineer Scoop.

35. Tour of Hanna Coal Company Mine Site, Cadiz, Ohio

36. Visitors Pose with Hanna Coal Company's Mountaineer Shovel