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: Masonry as Constructed, Bridge 51 - Hell Gate River, West of Garrison, Montana, 1909

• US WaBuPNRA D0027-004-009-008-001-BB018292
• Item
• 1909

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Masonry as Constructed, Bridge 51 - Hell Gate River, West of Garrison, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB018290
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Masonry as Constructed, Bridge 51 - Hell Gate River, West of Garrison, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB018291
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: New Masonry, Bridge 51 - Hell Gate River, West of Garrison, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB018293
• 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: Shop Plan - Bearing, Bridge 51 - Hell Gate River, West of Garrison, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB018304
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Shop Plan - Floor Beam, Bridge 51 - Hell Gate River, West of Garrison, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB018302
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: Shop Plan - Floor Beam/Stringer, Bridge 51 - Hell Gate River, West of Garrison, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB018307
• Item
• undated

Part of Timothy Miller Collection