Denver Rock Island Railroad
| Overview | |
|---|---|
| Headquarters | Commerce City, Colorado |
| Reporting mark | DRIR |
| Locale | Adams County and Denver, Colorado |
| Predecessor | Chicago, Rock Island and Pacific Railroad |
| Technical | |
| Track gauge | 4 ft 8+1⁄2 in (1,435 mm) standard gauge |
The Denver Rock Island Railroad (reporting mark DRIR), formerly known as the Denver Terminal Railroad, is a Class III terminal railroad in Denver and Commerce City, Colorado. The DRIR works around Denver's stock yards and many industries in that area.