The EMD GP35 is a 4-axle diesel-electric locomotive built by General Motors Electro-Motive Division between July 1963 and December 1965 and by General Motors Diesel between May 1964 and January 1966. 1251 examples were built for American railroads. Power was provided by an EMD 567D3A 16-cylinder engine which generated 2,500 horsepower (1,860 kW).
Many railroads traded in Alco FA units and EMD F-units for GP35s, reusing the trucks and traction motors.
| Horsepower | Wheel Arrangement | Gearing | Weight | Tractive Effort | DRGW Class | Builder |
| 2500 | B-B | 62:15 | 260482 (3029-38) 259789 (3039-50) |
62254 (3029-38) 61944 (3039-50) |
DE B-B 62 | EMD |
| The entire class of Rio Grande GP35's was demoted to B-unit status in 1972 due to the FRA mandate requiring chemical retention toilets in all locomotives. Rather than upgrading the locomotives the Rio Grande chose to demote them. At the time of the demotion, cab sunshades, speed recorders and other cab equipment was removed from the GP35's. [73] |
| Road # | EMD Builder # | Purchased | Retired | Notes |
| 3029 | 29260 | 5/1964 | 12/1993 | OmniTRAX, 2/1995 |
| 3030 | 29261 | 5/1964 | 12/1993 | WATCO 11/1/1994 Southeast Kansas RR #3030 Montana Rail Link #? |
| 3031 | 29262 | 5/1964 | 12/1993 | WATCO 11/1/1994 Southeast Kansas RR #3031 |
| 3032 | 29263 | 5/1964 | 12/1993 | OmniTRAX, ~1/1995 Utah Railway #2001, turbo removed, horsepower reduced to 2000, 1998 |
| 3033 | 29264 | 5/1964 | 12/1993 | OmniTRAX, ~1/1995 [167] To Northern Plains Railway #3502 "City of Warren" |
| 3034 | 29265 | 6/1964 | 10/1991 | OmniTRAX, 1995 |
| 3035 | 29266 | 6/1964 | ? | OmniTRAX, 7/15/1994 Longhorn Railway #2007 Northern Plains Railway#3504, 1998 |
| 3036 | 29267 | 6/1964 | 12/1993 | OmniTRAX, ~1/1995 [167] Northern Plains Railway #3501, "City of Devil's Lake" |
| 3037 | 29370 | 6/1964 | 12/1993 | OmniTRAX, ~1/1995 Utah Railway #2000, turbo removed, horsepower reduced to 2000, 1998 |
| 3038 | 29371 | 6/1964 | 12/1993 | OmniTRAX, ~1/1995 Great Western Railway #3038 Western Ohio RR #3038 |
| 3039 | 29964 | 12/1964 | 12/1993 | OmniTRAX #3039, ~1/1995 Indiana High-Rail #3039 Montana Rail Link #403 |
| 3040 | 29965 | 12/1964 | 12/1993 | WATCO, ~1/1995 Southeast Kansas RR #3040 |
| 3041 | 29966 | 12/1964 | 12/1993 | OmniTRAX, Loveland, CO, ~1/1995 S. E. Kansas & Oklahoma #3041 Great Western Railway #3041 Indiana High-Rail #3041 Hudson Bay Railway #2501, 5/1997 |
| 3042 | 29967 | 12/1964 | 12/1993 | OmniTRAX, ~1/1995 Great Western Railway #3042 Western Ohio RR #3042 |
| 3043 | 29968 | 12/1964 | 12/1993 | OmniTRAX #3043, ~1/1995 Indiana High-Rail #3043, 5/1996 Montana Rail Link #404, 1997 |
| 3044 | 29969 | 12/1964 | 8/1995 | Wrecked at Allen, CO Progress Rail, 10/1995 Metro East Industries, East St. Louis, IL |
| 3045 | 29970 | 12/1964 | 5/7/1996 | Wheeling & Lake Erie #3045, 7/1997 |
| 3046 | 29971 | 12/1964 | 12/1993 | WATCO, ~1/1995 Southeast Kansas RR #3046 |
| 3047 | 29972 | 12/1964 | 12/1993 | OmniTRAX, ~1/1995 Montana Rail Link #405 |
| 3048 | 29973 | 1/1965 | 12/1994 | Damaged in wreck at Swan, Colorado, 9/22/1970. Rebuilt by EMD. Received large Rio Grande logo OmniTRAX, Loveland, CO, 2/11/1995 |
| 3049 | 29974 | 1/1965 | 12/1993 | OmniTRAX, Wichita, KS, ~1/1995 Lettered for Indiana High-Rail #3049 OmniTRAX #3049 |
| 3050 | 30023 | 1/1965 | 12/1993 | OmniTRAX, ~1/1995 Kansas Southwestern RR #3050, 1996 Longhorn Railway #2006, 1997 Northern Plains Railway #3505, 1998 |
