Idaho Northern and Pacific Railroad

Idaho Northern and Pacific Railroad
INPR 4606 and 4608 La Grande Oregon (2021)
Overview
HeadquartersEmmett, Idaho
Reporting markINPR
LocaleIdaho, Oregon
Dates of operation1993present
Technical
Track gauge4 ft 8+12 in (1,435 mm) standard gauge
Other
Websitergpc.com/railroads/idaho-northern-pacific-railroad/
Route map

Thunder Mountain Subdivision
UP
Payette
Fruitland, Idaho
New Plymouth, Idaho
Emmett, Idaho
Montour
Horseshoe Bend, Idaho
Banks, Idaho
Big Eddy
Smiths Ferry, Idaho
Cascade, Idaho
Oregon Subdivision
WURR
Elgin
Baum
Island City
La Grande
UP

The Idaho Northern and Pacific Railroad (reporting mark: INPR) is a small railroad in southwestern Idaho and eastern Oregon in the United States. It owns 120 miles (190 km) of former Union Pacific Railroad branch lines, and is a subsidiary of the Rio Grande Pacific Corp., based in Fort Worth, Texas. Idaho Northern and Pacific's offices are in Emmett, Idaho.

As of 2021, the INPR operated in two separate subdivisions, The Elgin Subdivision which operates from La Grande to Elgin (21.5 miles [34.6 km]) connecting at Elgin with another former UP rail line now owned by Wallowa County – which continues to Joseph, Oregon – and the Payette Subdivision Payette through Emmett and then into the canyon of the North Fork of the Payette River northward to Cascade. This section, known as the Thunder Mountain Subdivision is considered the most scenic stretch of the INPR. The Emmett to Cascade Thunder Mountain Subdivision was put in OOS (Out of Service) status in 2016, it has not been abandoned and remains in railroad possession with fully compliant railroad crossings and occasional maintenance.