| Unit | Bldr. | Model | B/N | F/N | B/D | History | Acq. | Ret. | Notes |
| T-1 | GE | Slug | 4883 | 12/1914 | acquired new | 1914 | 1967 | scrapped, 1970s | |
| T-2 | GE | Slug | 4884 | 12/1914 | acquired new | 1914 | 1967 | to display (Butte, MT) | |
| T-3 | GE | Slug | 4885 | 1/1915 | acquired new | 1915 | 1967 | scrapped, 1970s | |
| 39 | GE | 80ton Electric | 5763 | 3/1917 | acquired new | scrapped | |||
| 40 | GE | 80ton Electric | 5764 | 3/1917 | acquired new | scrapped | |||
| 41 | GE | 80ton Electric | 5765 | 5/1917 | acquired new | scrapped | |||
| 42 | GE | 80ton Electric | 5540 | 11/1916 | acquired new | scrapped | |||
| 43 | GE | 80ton Electric | 5541 | 12/1916 | acquired new | scrapped | |||
| 44 | GE | 80ton Electric | 5542 | 12/1916 | acquired new | scrapped | |||
| 45 | GE | 80ton Electric | 4859 | 1/1916 | acquired new | scrapped | |||
| 46 | GE | 80ton Electric | 4879 | 12/1914 | acquired new | scrapped | |||
| 47 | GE | 80ton Electric | 4880 | 12/1914 | acquired new | to display (Butte, MT) | |||
| 48 | GE | 80ton Electric | 4881 | 1/1915 | acquired new | scrapped | |||
| 49 | GE | 80ton Electric | 4882 | 2/1915 | acquired new | scrapped | |||
| 50 | GE | 80ton Electric | 3817 | 5/1913 | acquired new | scrapped | |||
| 51 | GE | 80ton Electric | 3818 | 5/1913 | acquired new | scrapped | |||
| 52 | GE | 80ton Electric | 3819 | 4/1913 | acquired new | scrapped | |||
| 53 | GE | 80ton Electric | 3820 | 4/1913 | acquired new | scrapped | |||
| 54 | GE | 80ton Electric | 3821 | 5/1913 | acquired new | scrapped | |||
| 55 | GE | 80ton Electric | 3822 | 5/1913 | acquired new | scrapped | |||
| 56 | GE | 80ton Electric | 3823 | 7/1913 | acquired new | scrapped | |||
| 57 | GE | 80ton Electric | 3824 | 7/1913 | acquired new | scrapped | |||
| 58 | GE | 80ton Electric | 3825 | 7/1913 | acquired new | scrapped | |||
| 59 | GE | 80ton Electric | 3826 | 9/1913 | acquired new | scrapped | |||
| 60 | GE | 80ton Electric | 3827 | 9/1913 | acquired new | scrapped | |||
| 61 | GE | 80ton Electric | 3828 | 10/1913 | acquired new | scrapped | |||
| 62 | GE | 80ton Electric | 3829 | 10/1913 | acquired new | scrapped | |||
| 63 | GE | 80ton Electric | 3830 | 11/1913 | acquired new | scrapped | |||
| 64 | GE | 80ton Electric | 3831 | 11/1913 | acquired new | scrapped | |||
| 65 | GE | 80ton Electric | 3832 | 5/1913 | acquired new | scrapped | |||
| 66 | GE | 80ton Electric | 3833 | 5/1913 | acquired new | scrapped | |||
| 100 | EMD | SW1200 | 20640 | 4311-1 | 5/1955 | nee TOV 100 | 1972 | 1981 | to Anaconda Aluminum 100 (Columbia Falls, MT), 1981; to Columbia Falls Aluminum 100(Columbia Falls, MT), 1985; to SSRX 904 |
| 101 | EMD | GP7 | 17050 | 6425-1 | 4/1952 | acquired new | 1952 | to Stauffer Chemical (Silver Bow, MT) 101; to Rhone Poulenc (Silver Bow, MT) 101; to Agrium (Conda, ID) | |
| 102 | EMD | GP7 | 17051 | 6425-2 | 4/1952 | acquired new | 1952 | 1985 | to RARW 102, 1985; to BAP:2 102 |
| 103 | EMD | GP7 | 18408 | 5284-1 | 6/1953 | acquired new | 1953 | 1985 | to RARW 103, 1985; to BAP:2 103 |
| 104 | EMD | GP9 | 22823 | 5508-1 | 3/1957 | acquired new | 1957 | 1985 | to RARW 104, 1985 |
| 105 | EMD | GP9 | 22824 | 5508-2 | 3/1957 | acquired new | 1957 | 1985 | to RARW 105, 1985; to SAV/RARW 105; to LTEX 105 |
| 106 | EMD | GP9 | 23355 | 5508-3 | 3/1957 | acquired new | 1957 | 1985 | to RARW 106, 1985; to BAP:2 106 |
| 107 | EMD | GP9 | 23356 | 5508-4 | 3/1957 | acquired new | 1957 | 1985 | to RARW 107, 1985; to SAV/RARW 107; to LTEX 107 |
| 108 | EMD | GP38-2 | 766008-1 | 766008-1 | 1/1977 | acquired new | 1977 | 1985 | to RARW 108, 1985; to ARR 2001, 1986 |
| 109 | EMD | GP38-2 | 786138-1 | 786138-1 | 12/1978 | acquired new | 1978 | 1985 | to RARW 109, 1985; to ARR 2002, 1986 |
| 201 | GE | 125ton Electric | 32882 | 1957 | acquired new | 1957 | 1967 | retired, 1967; to CN (for parts); scrapped, 1977 | |
| 202 | GE | 125ton Electric | 32883 | 1957 | acquired new | 1957 | 1967 | retired, 1967; to CN (for parts); scrapped, 1977 |
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Last updated: Jan. 05, 2025