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Go to Pacific Northwest Railroad Archive at Burien, Washington
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  •  CollectionD0027 - Timothy Miller Collection
  •  Series004 - Northern Pacific Railroad Company
  •  Subseries Level 1009 - Engineering Records
  •  Subseries Level 2008 - Physical plant drawing
  •  Subseries Level 3008 - Tunnels
  • 51 more...
  • ItemBB017637 - Northern Pacific Engineering Drawing: Hand Hoist - Door Operator, Bozeman Tunnel, Muir, Montana, undated
  • ItemBB017638 - Northern Pacific Engineering Drawing: Interior View, Bozeman Tunnel, Muir, Montana, undated
  • ItemBB017639 - Northern Pacific Engineering Drawing: Safety Ladder, Bozeman Tunnel, Muir, Montana, undated
  • ItemBB017640 - Northern Pacific Engineering Drawing: Pick Up Assembly, Bozeman Tunnel, Muir, Montana, undated
  • ItemBB017641 - Northern Pacific Engineering Drawing: Blast Protection, Bozeman Tunnel, Muir, Montana, undated
  • ItemBB017642 - Northern Pacific Engineering Drawing: Shop Plan - Safety Ladder, Bozeman Tunnel, Muir, Montana, undated
  • ItemBB017643 - Northern Pacific Engineering Drawing: North Wall Sketch, Bozeman Tunnel, Muir, Montana, undated
  • ItemBB017644 - Northern Pacific Engineering Drawing: Reinforcement Section, Bozeman Tunnel, Muir, Montana, 1944
  • ItemBB017818 - Northern Pacific Engineering Drawing: Replace Wall and Arch, Mullan Tunnel, Blossburg, Montana, undated
  • 69 more...

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Northern Pacific Engineering Drawing: Blast Protection, Bozeman Tunnel, Muir, Montana, undated

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