Railroad Archives Online
- CollectionD0504b - Al Christianson Collection - Friends of the Burlington Northern Railroad
- Series001 - Burlington Northern Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3002 - Diesel Locomotives
- 477 more...
- ItemChristianson000557 - Burlington Northern 8167 at Minneapolis, Minnesota in 1982
- ItemChristianson000558 - Burlington Northern 8178 at Big Lake, Minnesota in 1980
- ItemChristianson000559 - Burlington Northern 8034 at Minneapolis, Minnesota in 1980
- ItemChristianson000560 - Burlington Northern 9758 at Minneapolis, Minnesota in 1976
- ItemChristianson000561 - Burlington Northern 9917 at Chicago, Illinois in 1981
- ItemChristianson000562 - Burlington Northern 995 at Breckenridge, Minnesota in 1981
- ItemChristianson000563 - Burlington Northern 995 at Milnor, North Dakota in 1981
- ItemChristianson000564 - Burlington Northern 995 at Gwinner, North Dakota in 1981
- ItemChristianson000565 - Burlington Northern 995 at Wyndmere, North Dakota in 1981
- 73 more...