Northern Pacific Engineering Drawing: Detail of Abutment/Piers, Bridge 233 - Prickly Pear Creek, East Helena, Montana, undated

• US WaBuPNRA D0027-004-009-008-001-BB015703
• Item
• undated

Part of Timothy Miller Collection

Northern Pacific Engineering Drawing: General Plan, Bridge 233 - Prickly Pear Creek, East Helena, Montana, 1928

• US WaBuPNRA D0027-004-009-008-001-BB015701
• Item
• 1928

Part of Timothy Miller Collection

Plat Map of Northern Pacific Facilities at East Helena, Montana, 1916

• US WaBuPNRA D0027-004-012-002-Plat012778
• Item
• November 16, 1916

Part of Timothy Miller Collection

Plat Map of Northern Pacific Facilities at East Helena, Montana, 1916

• US WaBuPNRA D0027-004-012-002-Plat012777
• Item
• November 16, 1916

Part of Timothy Miller Collection

Plat Map of Northern Pacific Facilities at East Helena, Montana, 1941

• US WaBuPNRA D0027-004-012-002-Plat012773
• Item
• April 10, 1941

Part of Timothy Miller Collection

Plat Map of Northern Pacific Facilities at East Helena, Montana, 1941

• US WaBuPNRA D0027-004-012-002-Plat012776
• Item
• April 10, 1941

Part of Timothy Miller Collection

Plat Map of Northern Pacific Facilities at East Helena, Montana, 1941

• US WaBuPNRA D0027-004-012-002-Plat012774
• Item
• April 10, 1941

Part of Timothy Miller Collection

Plat Map of Northern Pacific Facilities at East Helena, Montana, 1941

• US WaBuPNRA D0027-004-012-002-Plat012775
• Item
• April 10, 1941

Part of Timothy Miller Collection