Northern Pacific Engineering Drawing: Tunnel Sections, Garrison Tunnel, West of Garrison, Montana, undated

• US WaBuPNRA D0027-004-009-008-008-BB015330
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Sketch of New Lining, Garrison Tunnel, West of Garrison, Montana, undated

• US WaBuPNRA D0027-004-009-008-008-BB015333
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Sketch of New Lining, Garrison Tunnel, West of Garrison, Montana, undated

• US WaBuPNRA D0027-004-009-008-008-BB015334
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Sketch of New Lining, Garrison Tunnel, West of Garrison, Montana, undated

• US WaBuPNRA D0027-004-009-008-008-BB015335
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Repair to Tunnel, Garrison Tunnel, West of Garrison, Montana, undated

• US WaBuPNRA D0027-004-009-008-008-BB015331
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Forms for Tunnel, Garrison Tunnel, West of Garrison, Montana, undated

• US WaBuPNRA D0027-004-009-008-008-BB015332
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Cross Sections, Garrison Tunnel, West of Garrison, Montana, undated

• US WaBuPNRA D0027-004-009-008-008-BB014543
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Cross Sections, Garrison Tunnel, West of Garrison, Montana, undated

• US WaBuPNRA D0027-004-009-008-008-BB014544
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: 8 Inch Beam Rib Section, Garrison Tunnel, West of Garrison, Montana, undated

• US WaBuPNRA D0027-004-009-008-008-BB014541
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: 8 Inch Beam Rib Section, Garrison Tunnel, West of Garrison, Montana, undated

• US WaBuPNRA D0027-004-009-008-008-BB014542
• Item
• undated

Part of Timothy Miller Collection