Twenty-one Northern Pacific steam locomotives have been preserved:
Two 0-4-0 engines (the Minnetonka and 8).
The Minnetonka was built by Porter and Smith in 1870, and is now owned by the Lake Superior Railroad Museum and is on display in Duluth, Minnesota.
It has the distinction of being shipped in parts around Cape Horn and reassembled at Kalama, Washington circa 1871.

Five 0-6-0 engines, representing classes L-4 (927), L-5 (924), L-7 (1031) and L-9 (1068).
 Locomotive 1070 is located in Acme, WA.at the Lake Whatcom Railroad historically preserved by Owner/Engineer Frank Culp.
 L-4 927 is displayed at the Ironhorse Central Railroad Museum Chisago City, Minnesota.
 L-7 1031 is displayed at the Yellowstone Valley Museum in Billings, MT.

One 2-6-2 engine, Class T (2435).
The locomotive was built by the Brooks Locomotive Works in 1907 and is now owned by the Lake Superior Railroad Museum in Duluth, Minnesota.

One 2-8-0 engine, Class Y-1 (25).

One 2-8-2 engine, Class W-3 (1762).

Two 4-4-0 engines, classes C-1 (684), and 25½-C (21).
NP 684 was built by the New York Locomotive Works in 1883.
Sold off and later abandoned in a field in Idaho, it was rescued and rebuilt by the Northern Pacific at the instigation of company photographer Ronald V. Nixon.
It is on display at Bonanzaville, USA in Fargo, North Dakota.
NP 21 was built by the Baldwin Locomotive Works in 1872 and was later sold to the Canadian Pacific Railway and became the CP 1, the Countess of Dufferin.
 The engine is now owned by the City of Winnipeg and on permanent display in the Winnipeg Railway Museum.

Five 4-6-0 Baldwin engines, representing classes S-4 (1354, 1356, 1364 and 1382) and Class S-10 (328).
The 1364 is being restored by the Northern Pacific Railway Museum in Toppenish, Washington.
The 1356 was built in 1902 placed on display in 1957 in downtown Missoula, Montana next to the historic Northern Pacific railway depot built 1901.
The 1356 is very famous in western Montana and north Idaho for its use to save many people's lives in the 3-million-acre Bitterroot forest fires of 1910 escaping through fires on both sides of the track even traveling over a railroad trestle that was ablaze outside of Avery, Idaho.
In 1943 tragedy struck while the 1356 was pulling 28 log filled cars.
The 1356 derailed on a collapsing bridge into the Bitterroot river killing all three crew.
The 1356 was buried by the log train and even the recovery crane toppled on top of 1356 during the recovery.
1356 was rebuilt in Livingston, Montana and returned to service.
Missoula, Montana has a celebration every year for the 1356.
The 328 was built by Rogers Locomotive Works in 1907 and is owned by the Minnesota Transportation Museum and is being restored in Saint Paul, Minnesota.

Four 4-6-2 engines, representing Class Q-3 (2152, 2153, 2156 and 2164).
The 2152 is owned and displayed by the Northern Pacific Railway Museum in Toppenish, WA.
The 2153 and 2156 were built by Baldwin Locomotive Works in 1909 are owned by the Minnesota Transportation Museum.
The 2156 is being restored in Saint Paul, Minnesota.
The 2164 is on display at Camp Hancock State Historic Site in Bismarck, North Dakota.

In addition, preserved Spokane, Portland and Seattle 700, a 4-8-4, was derived from Northern Pacific designs.
Twenty-one Northern Pacific steam locomotives have been preserved:
Two 0-4-0 engines (the Minnetonka and 8). The Minnetonka was built by Porter and Smith in 1870, and is now owned by the Lake Superior Railroad Museum and is on display in Duluth, Minnesota. It has the distinction of being shipped in parts around Cape Horn and reassembled at Kalama, Washington circa 1871.
Five 0-6-0 engines, representing classes L-4 (927), L-5 (924), L-7 (1031) and L-9 (1068).  Locomotive 1070 is located in Acme, WA.at the Lake Whatcom Railroad historically preserved by Owner/Engineer Frank Culp.  L-4 927 is displayed at the Ironhorse Central Railroad Museum Chisago City, Minnesota.  L-7 1031 is displayed at the Yellowstone Valley Museum in Billings, MT.
One 2-6-2 engine, Class T (2435). The locomotive was built by the Brooks Locomotive Works in 1907 and is now owned by the Lake Superior Railroad Museum in Duluth, Minnesota.
One 2-8-0 engine, Class Y-1 (25).
One 2-8-2 engine, Class W-3 (1762).
Two 4-4-0 engines, classes C-1 (684), and 25½-C (21). NP 684 was built by the New York Locomotive Works in 1883. Sold off and later abandoned in a field in Idaho, it was rescued and rebuilt by the Northern Pacific at the instigation of company photographer Ronald V. Nixon. It is on display at Bonanzaville, USA in Fargo, North Dakota. NP 21 was built by the Baldwin Locomotive Works in 1872 and was later sold to the Canadian Pacific Railway and became the CP 1, the Countess of Dufferin.  The engine is now owned by the City of Winnipeg and on permanent display in the Winnipeg Railway Museum.
Five 4-6-0 Baldwin engines, representing classes S-4 (1354, 1356, 1364 and 1382) and Class S-10 (328). The 1364 is being restored by the Northern Pacific Railway Museum in Toppenish, Washington. The 1356 was built in 1902 placed on display in 1957 in downtown Missoula, Montana next to the historic Northern Pacific railway depot built 1901. The 1356 is very famous in western Montana and north Idaho for its use to save many people's lives in the 3-million-acre Bitterroot forest fires of 1910 escaping through fires on both sides of the track even traveling over a railroad trestle that was ablaze outside of Avery, Idaho. In 1943 tragedy struck while the 1356 was pulling 28 log filled cars. The 1356 derailed on a collapsing bridge into the Bitterroot river killing all three crew. The 1356 was buried by the log train and even the recovery crane toppled on top of 1356 during the recovery. 1356 was rebuilt in Livingston, Montana and returned to service. Missoula, Montana has a celebration every year for the 1356. The 328 was built by Rogers Locomotive Works in 1907 and is owned by the Minnesota Transportation Museum and is being restored in Saint Paul, Minnesota.
Four 4-6-2 engines, representing Class Q-3 (2152, 2153, 2156 and 2164). The 2152 is owned and displayed by the Northern Pacific Railway Museum in Toppenish, WA. The 2153 and 2156 were built by Baldwin Locomotive Works in 1909 are owned by the Minnesota Transportation Museum. The 2156 is being restored in Saint Paul, Minnesota. The 2164 is on display at Camp Hancock State Historic Site in Bismarck, North Dakota.
In addition, preserved Spokane, Portland and Seattle 700, a 4-8-4, was derived from Northern Pacific designs.
Northern Pacific Railway