AFE 55557, Chattaco Mine, Minnesota, 1938. Construct Turnout 100' Long Off Dm&Ir Tracks, Relocate 1165' Main Line and Extend Same 346' , Relocate 1287' Loading Track, Remove and Rearrange Tracks. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Cost: $6072. Series II. Lines East. Other Subject Categories: Track, Industry

AFE 56655, Chattaco Mine, Minnesota, 1939. Extend Loading Track 300'. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Cost: $1140. Series II. Lines East. Other Subject Categories: Track, Industry

AFE 60427, Chattaco Mine, Minnesota, 1940. Construct 5428' Main Line to Connect with Chisholm Line, Remove 1389' Present Main Line, Construct Spur 1640' Long, Loading Track 1115' Long, Second Tail Track 425' Long; Remove Loading Track 1192' Long and Crossover 235' Long. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Cost: $60427. Series II. Lines East. Other Subject Categories: Track, Industry

AFE 60927, Chattaco Mine, Minnesota, 1940. Remove 1115' Loading Track and 425' Second Tail Track; Also Construct 5468' Main Track to Chisholm Mine. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Cost: $37185. Series II. Lines East. Other Subject Categories: Track, Yard

AFE 63331, Chattaco Mine, Minnesota, 1943. Remove 1699' Main Spur, 1188' Run Around Track, 384' Second Tail Track. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Cost: $475. Series II. Lines East. Other Subject Categories: Track, Industry

AFE 75158, Chattaco Mine, Minnesota, 1947. Construct 1440' for Harrison. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Cost: $5680. Series II. Lines East. Other Subject Categories: Track, Industry

AFE 91442, Chattaco Mine, Minnesota, 1959. Extend 125'. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Cost: $765. Series II. Lines East. Other Subject Categories: Track, Industry