Evergreen Box Cars:

Photo by: Jim Sands
In the mid/late 1960's, the SP wanted to ensure a ready supply of box cars for transporting lumber from the Pacific northwest to California. Through a subsidiary affiliate company, Evergreen Leasing, they started ordering box cars that the SP would lease for lumber loading. These cars were delivered in green paint with Evergreen name and EFCX reporting marks. They also carried SP class desingations. Later, they would be transferred to SP proper and given SP reporting marks and numbered in the 29xxxx series.
| class | EFCX number | SP number |
| B-70-38 | EFCX 1000-2900 | SP 290000-291730 |
| B-70-44 | EFCX 3001-3600 | SP 291754-292322 |
| B-70-51 | EFCX 3601-3900 | SP 292324-292610 |
| B-70-65 | EFCX 3901-4400 | SP 292612-293096 |