Burlington Northern Electro-Motive Division (EMD) NW5 Number 995 at Milnor, North Dakota on March 11, 1981. Photo by Al Christianson.

Burlington Northern Electro-Motive Division (EMD) NW5 Number 995 at Wyndmere, North Dakota on February 18, 1981. Photo by Al Christianson.

Burlington Northern NW5 Number 995 with NW5 Number 993 barely visible at Wyndmere, North Dakota on February 18, 1981. Photo by Al Christianson.

Burlington Northern NW5 Number 995 at Wyndmere, North Dakota on February 18, 1981. Photo by Al Christianson.

Burlington Northern NW5 Number 995 with NW5 Number 993 barely visible at Wyndmere, North Dakota on February 18, 1981. Photo by Al Christianson.

It's 12:07 pm on August 22, 1988 as eastbound Burlington Northern freight Number 196 on Montana Rail Link rails prepares to enter Mullan Tunnel after crossing the Continental Divide (elevation 5,549 feet) at Blossburg, Montana. The power, as provided by a Burlington Northern Electro-Motive Division (EMD) (Electro Motive Division of General Motors) SD40-2 and a leased LMX Corporation GE (General Electric) B39-8, appears to be marginal for this train on the one-point-eight-percent grade leading up to the Divide. This GE locomotive is the last-numbered unit of 100 leased by the Burlington Northern from LMX.

Overhead view of a Burlington Northern diesel locomotive with a single wood chip car on the Goldendale Branch, undated.

Northern Pacific Electro-Motive Division Type GP9s numbered as Burlington Northern 1749 and 1997 at Garrison, Montana, April 10, 1971.

Great Northern Electro-Motive Division Type GP9s numbered as Burlington Northern 1823, 1804, 1803, and 1795 act as helpers behind Great Northern caboose X77 at Summit, Montana, April 9, 1971.

Chicago, Burlington and Quincy Electro-Motive Division Type GP35 numbered as Burlington Northern 2536, Northern Pacific Type GP9 as Burlington Northern 1747, Great Northern Type GP7 as Burlington Northern 1530, and Great Northern Type GP9 as Burlington Northern 1770 at Summit, Montana, April 9, 1971.

Chicago, Burlington and Quincy Electro-Motive Division Type GP35 numbered as Burlington Northern 2536, Northern Pacific Type GP9 as Burlington Northern 1747, Great Northern Type GP7 as Burlington Northern 1530, and Great Northern Type GP9 as Burlington Northern 1770 at Summit, Montana, April 9, 1971.

Burlington Northern Diesel Locomotives 300, Class SW1500 and 1508, Class GP7 in Washington State, undated. Photograph by Wade Stevenson.

Chicago, Burlington and Quincy Electro-Motive Division Type GP40 numbered as Burlington Northern 3030, Northern Pacific Electro-Motive Division Type SD45 as Burlington Northern 3629 and Northern Pacific General Electric Type U25C Numbered as Burlington Northern 2527 at Whitefish, Montana, May 16, 1970.

Burlington Northern diesel locomotives Number 3040 (EMD GP40-2, former Frisco 750) and 7067 (EMD SD40-2) with the first section of Train 671 at Washtucna, Washington , June 27, 1987. Photo by Robert Johnston.

Burlington Northern Tiger Stripes Diesel Locomotives 3117, 3124, 3112, a fuel tender car, and a fourth tiger striped locomotive head westbound over Highway 209 and into Chumstick Tunnel, Number 13, on June 6, 1986.

Northern Pacific 384 (part of the Burlington Northern since March 1, 1970), an Electro-Motive Division Type GP9, a Great Northern Electro-Motive Division Type F7A numbered as Burlington Northern 686, a Great Northern Type F7B numbered as Burlington Northern 679, and Southern Pacific 7114, an American Locomotive Company (ALCO) Type C628 at Missoula, Montana, May 17, 1970.

Burlington Northern diesel locomotives Number 4056 and 4067, both Alco RS-3 (4056 former SP&S 71, 4067 former SP&S 82), switching yard at Albany, Oregon (former Oregon Electric), undated.

Burlington Northern diesel locomotives Number 4056 and 4067, both Alco RS-3 (4056 former SP&S 71, 4067 former SP&S 82), switching yard at Albany, Oregon (former Oregon Electric), undated.

Burlington Northern Electro-Motive Division Type SD45s 525, 524, and 523 at Laclede, Idaho, March 27, 1970.

Burlington Northern Electro-Motive Division Type SD45s 525, 524, and 523 at Laclede, Idaho, March 27, 1970.

Burlington Northern Electro-Motive Division Type SD45s 525, 524, and 523 at Laclede, Idaho, March 27, 1970.

Burlington Northern Electro-Motive Division Type SD45 529 at Spokane, Washington, March 27, 1970.

Northern Pacific General Electric Type U25C numbered as Burlington Northern 5609, Chicago, Burlington and Quincy Electro-Motive Division Type SD9 numbered as Burlington Northern 6249 and Burlington Northern 6247 west of at Missoula, Montana, September 5, 1970.

Chicago, Burlington and Quincy General Electric Type U25C numbered as Burlington Northern 5662, and Burlington Northern 6469 and 6468, Electro-Motive Division Type SD45s, at Fort Wright, Washington, April 24, 1971.

Northern Pacific General Electric Type U25C numbered as Burlington Northern 5673, Great Northern Electro-Motive Division Type SD45 numbered as Burlington Northern 6450, and Northern Pacific Electro-Motive Division Type SD45 numbered as Burlington Northern 6418 at Missoula, Montana, September 6, 1970.

Great Northern Electro-Motive Division Type F7A, numbered as Burlington Northern 602, andSpokane, Portland, and Seattle Railway American Locomotive Company (ALCO) Type RS3 numbered as Burlington Northern 4077 at Pasco, Washington, August 1, 1970.

Burlington Northern Train Number 195 climbing toward the Gaynor Trestle and Tunnel Number 14.7. Lead Engine 6349 has Colorado and Southern Initials above the number on the front of the cab. The icture taken at 12:44 pm October 21, 1987 approaching Milepost 1696+.

Northern Pacific Electro-Motive Division Type SD45 numbered as Burlington Northern 6418, Great Northern Electro-Motive Division Type SD45F as Burlington Northern 428, and Great Northern Type SD45 as Burlington Northern 423 at Trego, Montana, May 17, 1970.

Great Northern Electro-Motive Division Type SD45 numbered as Burlington Northern 6436, Great Northern Type F45 as Burlington Northern 430, and Northern Pacific Type SD45 as Burlington Northern 3613 at Glacier Park, Montana, May 16, 1970.

Great Northern Electro-Motive Division Type SD45F numbered as Burlington Northern 6600 and Spokane, Portland and Seattle Railway American Locomotive Company (ALCO) Type C425 numbered as Burlington Northern 4240 at Whitefish, Montana, September 6, 1970.