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| | RGM&HS Reference Material |
 | | [70] Stewart, Paul Logan, "The History Of The Denver And Rio Grande Railway, 1871-1881 (M. Thesis)," University of Colorado, Boulder, Colorado, 1931 |
 | | [206] Thode, Jackson C., "A Century of Passenger Trains: A Study of Passenger Service on the Denver & Rio Grande Railway, Its Heirs, Successors and Assigns," Rocky Mountain Railroad Club, Denver Colorado, 1972. |
 | | [37] Albi, Charles and Kenton Forrest, "The Moffat Tunnel: A Brief History," Colorado Railroad Museum, Golden, Colorado, 1984 |
| www.rgmhs.drgw.org /reference/ref_num.htm |
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