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
- 438 more...
- ItemChristianson000518 - Burlington Northern Diesel Locomotive 7066 at Minneapolis, Minnesota in 1979
- ItemChristianson000519 - Burlington Northern Diesel Locomotive 7066 at Minneapolis, Minnesota in 1979
- ItemChristianson000520 - Burlington Northern Diesel Locomotive 7132 at Minneapolis, Minnesota in 1981
- ItemChristianson000521 - Burlington Northern Diesel Locomotive 7143 at Fort Worth, Texas in 1980
- ItemChristianson000522 - Burlington Northern Diesel Locomotive 7842 at Minneapolis, Minnesota in 1981
- ItemChristianson000523 - Burlington Northern Diesel Locomotive 7856 at Minneapolis, Minnesota in 1981
- ItemChristianson000524 - Burlington Northern Diesel Locomotive 7861 at Saint Paul, Minnesota in 1981
- ItemChristianson000525 - Burlington Northern Diesel Locomotive 7868 at Minneapolis, Minnesota in 1980
- ItemChristianson000526 - Burlington Northern Diesel Locomotive 7868 at Minneapolis, Minnesota in 1980
- 112 more...