| Owner: | Union Pacific Railroad Company |
| Type: | Gondola |
| AAR Class: | GB: Open top car, having fixed sides, fixed or drop ends and solid bottom. |
| AAR Type: | G621 |
| Detail Info: | Unequipped Gondola, Inside length greater than 61ft, less than 9ft inside width, Steel Floor, drop ends, Inside height: 12-46 inches, Load Limit: 155,000-184,999 |
| Plate: | B |
| UP Class: | G-70-12 |
| Max Gross Weight: | 220000 |
| Load Limit: | 161000 |
| Dry Capacity: | 1800 |
| Ext L/W/H: | 70' 9" / 8' 8" / 7' 1" |
| Int L/W/H: | 65' 6" / 7' 9" / 3' 6" |
| User Notes: | Blt. GBEC 9/66, 65'6" |
