Great Northern Blueprint Number 1335-40-1, Map and Profiles Switchbacks, Old and New Tunnels, Cascade Tunnel, 1949. Other subject categories: Map

Great Northern Blueprint Number 1335-40-3, Map and Profiles Switchbacks, Old and New Tunnels, Cascade Tunnel, 1949. Other subject categories: Map

AFE 1021, Cascade Tunnel, Washington, 1899. Construct Section House. Interstate Commerce Commission Account Number 17, Roadway buildings. Cost: $155. Series I. Lines West. Cascade Division. Other Subject Categories: Roadway Buildings, Section Facilities

AFE 11586, Cascade Tunnel, Washington, 1905. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Series I. Lines West. Other Subject Categories: Repair Facilities, Turntable

AFE 11837, Cascade Tunnel, Washington, 1905. at Tunnel. Interstate Commerce Commission Account Number 27, Signals and Interlockers. Series I. Lines West. Other Subject Categories: Signals, Train Order

AFE 11883, Cascade Tunnel, Washington, 1905. Interstate Commerce Commission Account Number 26, Communication Systems. Series I. Lines West. Other Subject Categories: Communications, Telephone

AFE 12319, Cascade Tunnel, Washington, 1906. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Series I. Lines West. Other Subject Categories: Track, Passing

AFE 12458, Cascade Tunnel, Washington, 1920. Rebuild 22' X 120' Motor House, Destroyed by Fire December 8th, 1919. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Cost: $18530. Series II. Lines West. Cascade Division. Other Subject Categories: Roadway Buildings, Motor Car Shed

AFE 12525, Cascade Tunnel, Washington, 1906. Construct Water Tank. Interstate Commerce Commission Account Number 18, Water Stations. Series I. Lines West. Other Subject Categories: Servicing Facilities, Water