AFE 17779, Mahoning Mine Spur, Minnesota, 1921. Install Equipment in Main Office of Mahoning Ore and Steel Company Telephone Line. Interstate Commerce Commission Account Number 26, Communication Systems. Cost: $117. Series II. Lines East.

AFE 19176, Mahoning Mine Spur, Minnesota, 1921. Convey Easement to Grant Iron Mine Company Portion of Land. Interstate Commerce Commission Account Number 2 Land for Transportation Purposes. Cost: $0. Series II. Lines East. Other Subject Categories: Land, Non-RoW Transactions

AFE 27165, Mahoning Mine Spur, Minnesota, 1924. Renew Telephone and Telegraph Wires - Utica to Mahoning. Interstate Commerce Commission Account Number 27, Signals and Interlockers. Cost: $27. Series II. Lines East. Other Subject Categories: Communications, Telegraph

AFE 34970, Mahoning Mine Spur, Minnesota, 1927. Rearrange Tracks and Relay Leads on South End of Yard with Secondhand 90 # Rail. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Cost: $72820. Series II. Lines East. Other Subject Categories: Track Maintenance, Rail

Great Northern Railway Authorization for Expenditure (AFE), Mahoning Mine Spur, Minnesota, 1900. Depot, One Story, with Platform. Interstate Commerce Commission Account Number 16, Station and Office Buildings. Series .

Great Northern Railway Authorization for Expenditure (AFE), Mahoning Mine Spur, Minnesota, 1937. Operator'S House . Interstate Commerce Commission Account Number 17, Roadway buildings. Series II.