| Name
|
Mark
|
System[nb 1]
|
From
|
To
|
Successor
|
Notes
|
| Alder Creek Railway
|
|
|
1912
|
1918
|
N/A
|
| Boise City Railway and Terminal Company
|
|
UP
|
1893
|
1910
|
Oregon Short Line Railroad
|
| Boise, Nampa and Owyhee Railway
|
|
UP
|
1896
|
1907
|
Idaho Northern Railway
|
| Burlington Northern Inc.
|
BN
|
|
1970
|
1981
|
Burlington Northern Railroad
|
| Burlington Northern Railroad
|
BN
|
|
1981
|
1996
|
Burlington Northern and Santa Fe Railway
|
| Camas Prairie RailNet
|
CSP
|
|
1998
|
2004
|
Great Northwest Railroad
|
| Camas Prairie Railroad
|
CSP
|
NP/ UP
|
1909
|
1998
|
Camas Prairie RailNet
|
| Canyon Creek Railroad
|
|
NP
|
1887
|
1888
|
Coeur d'Alene Railway and Navigation Company
|
| Central Idaho Railroad
|
|
UP
|
1910
|
1914
|
Oregon Short Line Railroad
|
| Chicago, Milwaukee and Puget Sound Railway
|
|
MILW
|
1909
|
1912
|
Chicago, Milwaukee and St. Paul Railway
|
| Chicago, Milwaukee and St. Paul Railway
|
|
MILW
|
1912
|
1928
|
Chicago, Milwaukee, St. Paul and Pacific Railroad
|
| Chicago, Milwaukee and St. Paul Railway of Idaho
|
|
MILW
|
1906
|
1908
|
Chicago, Milwaukee and St. Paul Railway of Washington
|
| Chicago, Milwaukee and St. Paul Railway of Washington
|
|
MILW
|
1908
|
1909
|
Chicago, Milwaukee and Puget Sound Railway
|
| Chicago, Milwaukee, St. Paul and Pacific Railroad
|
MILW
|
MILW
|
1928
|
1980
|
St. Maries River Railroad, Union Pacific Railroad
|
| Clearwater Short Line Railway
|
|
NP
|
1898
|
1914
|
Northern Pacific Railway
|
| Clearwater Valley Railroad
|
|
UP
|
1898
|
1916
|
Oregon–Washington Railroad and Navigation Company
|
| Coeur d'Alene Railway and Navigation Company
|
|
NP
|
1886
|
1897
|
Northern Pacific Railway
|
| Coeur d'Alene and Pend d'Oreille Railway
|
|
UP
|
1910
|
1941
|
Spokane International Railroad
|
| Columbia and Palouse Railroad
|
|
UP
|
1882
|
1910
|
Oregon Railroad and Navigation Company
|
| Craig Mountain Railway
|
|
|
1921
|
1965
|
N/A
|
| Craig Mountain Lumber Company's Railway
|
|
|
1909
|
1921
|
Craig Mountain Railway
|
| Gilmore and Pittsburgh Railroad
|
|
NP
|
1907
|
1939
|
N/A
|
| Great Northern Railway
|
GN
|
GN
|
1890
|
1970
|
Burlington Northern Inc.
|
| Idaho Central Railway
|
|
UP
|
1886
|
1889
|
Oregon Short Line and Utah Northern Railway
|
| Idaho Northern Railroad
|
|
UP
|
1906
|
1910
|
Oregon–Washington Railroad and Navigation Company
|
| Idaho Northern Railway
|
|
UP
|
1897
|
1912
|
Oregon Short Line Railroad
|
| Idaho Southern Railroad
|
|
|
1908
|
1916
|
N/A
|
| Idaho and Washington Northern Railroad
|
|
MILW
|
1907
|
1916
|
Chicago, Milwaukee and St. Paul Railway
|
| Idaho and Western Railway
|
|
MILW
|
1909
|
1912
|
Chicago, Milwaukee and Puget Sound Railway
|
| Intermountain Railway
|
|
|
1907
|
1935
|
N/A
|
| Kootenai Valley Railway
|
|
GN
|
1898
|
1913
|
Great Northern Railway
|
| Lake Creek and Coeur d'Alene Railroad
|
|
UP
|
1906
|
1910
|
Oregon–Washington Railroad and Navigation Company
|
| Lewiston, Nezperce and Eastern Railroad
|
|
|
1915
|
1924
|
N/A
|
| Malad Valley Railroad
|
|
UP
|
1902
|
1910
|
Oregon Short Line Railroad
|
| Milner and North Side Railroad
|
|
|
1907
|
1915
|
N/A
|
| Minidoka and Southwestern Railroad
|
|
UP
|
1904
|
1910
|
Oregon Short Line Railroad
|
| Nezperce Railroad
|
NEZP
|
|
1945
|
1983
|
N/A
|
| Nez Perce and Idaho Railroad
|
|
|
1917
|
1946
|
Nezperce Railroad
|
| Nez Perce and Idaho Railroad
|
|
|
1908
|
1915
|
Lewiston, Nezperce and Eastern Railroad
|
| Northern Pacific Railroad
|
|
NP
|
1864
|
1896
|
Northern Pacific Railway
|
| Northern Pacific Railway
|
NP
|
NP
|
1896
|
1970
|
Burlington Northern Inc.
|
| Ohio Match Company Railway
|
|
SI
|
1903
|
1944
|
Converted into roads.
|
| Oregon Railroad and Navigation Company
|
|
UP
|
1896
|
1910
|
Oregon–Washington Railroad and Navigation Company
|
| Oregon Railway and Navigation Company
|
|
UP
|
1884
|
1896
|
Oregon Railroad and Navigation Company
|
| Oregon Short Line Railroad
|
|
UP
|
1897
|
1987
|
Union Pacific Railroad
|
| Oregon Short Line Railway
|
|
UP
|
1882
|
1889
|
Oregon Short Line and Utah Northern Railway
|
| Oregon Short Line and Utah Northern Railway
|
|
UP
|
1889
|
1897
|
Oregon Short Line Railroad
|
| Oregon–Washington Railroad and Navigation Company
|
|
UP
|
1910
|
1987
|
Union Pacific Railroad
|
| Oregon, Washington and Idaho Railroad
|
|
UP
|
1903
|
1910
|
Oregon–Washington Railroad and Navigation Company
|
| Pacific and Idaho Northern Railway
|
P&IN
|
UP
|
1899
|
1936
|
Oregon Short Line Railroad
|
| Palouse River and Coulee City Railroad
|
PCC
|
|
1996
|
2006
|
Washington and Idaho Railway
|
| Payette Valley Railroad
|
|
UP
|
1906
|
1914
|
Oregon Short Line Railroad
|
| Payette Valley Extension Railroad
|
|
UP
|
1910
|
1914
|
Oregon Short Line Railroad
|
| St. Anthony Railroad
|
|
UP
|
1899
|
1910
|
Oregon Short Line Railroad
|
| Salmon River Railroad
|
|
UP
|
1901
|
1910
|
Oregon Short Line Railroad
|
| Salt Lake and Idaho Railroad
|
|
UP
|
1909
|
1914
|
Oregon Short Line Railroad
|
| San Francisco, Idaho and Montana Railway
|
|
UP
|
1905
|
1909
|
Oregon Short Line Railroad
|
| Spokane, Coeur d'Alene and Palouse Railway
|
|
GN
|
1926
|
1943
|
Great Northern Railway
|
Electric until 1941
|
| Spokane Falls and Idaho Railroad
|
|
NP
|
1886
|
1898
|
Northern Pacific Railway
|
| Spokane International Railroad
|
SI
|
UP
|
1941
|
1987
|
Union Pacific Railroad
|
| Spokane International Railway
|
|
UP
|
1905
|
1941
|
Spokane International Railroad
|
| Spokane and Palouse Railway
|
|
NP
|
1886
|
1898
|
Northern Pacific Railway
|
| Utah Northern Railroad
|
|
UP
|
1872
|
1878
|
Utah and Northern Railway
|
| Utah and Northern Railway
|
|
UP
|
1878
|
1889
|
Oregon Short Line and Utah Northern Railway
|
| Wallace and Sunset Railroad
|
|
NP
|
1890
|
1898
|
Northern Pacific Railway
|
| Washington and Idaho Railroad
|
|
UP
|
1886
|
1896
|
Oregon Railroad and Navigation Company
|
| Washington, Idaho and Montana Railway
|
WIM
|
MILW
|
1905
|
1980
|
Burlington Northern Inc.
|
| Weiser, Idaho and Spokane Railway
|
|
UP
|
|
1899
|
Pacific and Idaho Northern Railway
|
| Yellowstone Park Railroad
|
|
UP
|
1905
|
1910
|
Oregon Short Line Railroad
|