This is a complete
List of National Historic Landmarks in Idaho. The United States National Historic Landmark program is operated under the auspices of the National Park Service, and recognizes structures, districts, objects, and similar resources nationwide according to a list of criteria of national dept. 1
state of Idaho is home to 10 of these landmarks, spanning a range of history from the Lewis and Clark expedition to the beginnings of nuclear power. The table below lists all 10 of these sites, along with added detail and description.
2 3 County
May 5, 1961
43°36′41″N 116°11′45″W / 43.61139°N 116.19583°W
assay office symbolizes the importance of mining in the history of Idaho and the American West. Built in 1870-71, it operated by the federal government until 1933.
Bear River Massacre Site
June 21, 1990
42°8′46″N 111°54′51″W / 42.14611°N 111.91417°W
Franklin Where California Volunteers wrought
Bear River Massacre upon a Shoshoni village in 1863.
Camas Meadows Battle Sites
April 11, 1989
Clark Sites of the
Battle of Camas Creek, which allowed Nez Perce to further elude capture.
July 4, 1961
47°32′55.1″N 116°21′30″W / 47.548639°N 116.35833°W
Jesuit mission to the Coeur d'Alenes, dating from the 1850s, is the oldest remaining mission church in the Pacific Northwest.
City of Rocks
July 19, 1964
42°4′33″N 113°42′52″W / 42.07583°N 113.71444°W
Cassia Thousands of
emigrants on the California Trail made this a popular resting point, and left wagon ruts that are still visible today. For these emigrants, the landscape of rock outcrops rising like city buildings, woodlands, and mountains provided a welcome change from the surrounding sagebrush plains.
Experimental Breeder Reactor No.1
December 21, 1965
43°30′34″N 113°00′20″W / 43.5094965288°N 113.00562788°W
Butte This pioneering
nuclear reactor was the site of several milestones in the development of nuclear technology, including the first usable electricity (1951), the first self-sustaining chain reaction using plutonium rather than uranium (1963), and the first demonstration of the feasible use of high-temperature liquid metal as a reactor coolant.
January 20, 1961
43°1′13″N 112°38′5″W / 43.02028°N 112.63472°W
Bannock Outpost where the
Oregon Trail forked, splitting off the California Trail.
October 9, 1960
44°58′29″N 113°26′41″W / 44.97472°N 113.44472°W
Lemhi, ID and Beaverhead, MT Pass crossed by the
Lewis and Clark Expedition in August 1805
October 9, 1960
Lolo Hot Springs, ID
46°38′7″N 114°34′47″W / 46.63528°N 114.57972°W
Clearwater, ID and Missoula, MT Difficult trail followed by the
Lewis and Clark Expedition in 1805 and returning in 1806.
May 23, 1966
46°22′0″N 115°56′0″W / 46.36667°N 115.93333°W
Clearwater Meadow of
camas, whose roots were basic food for Nez Perce, where the Lewis and Clark Expedition emerged from Lolo Trail.
There are other historic sites preserved in Idaho. Considering them provides perspective on the NHLs. In particular, there are two areas in the National Park System:
Nez Perce National Historical Park, a set of 38 sites located throughout the states of Idaho, Montana, Oregon, and Washington which are the traditional aboriginal lands of the Nez Perce. The sites commemorate the history, culture, and stories of the people. Its headquarters are located in Lapwai, Idaho.
Minidoka National Historic Site, established in 2001, one of ten camps at which Japanese Americans were interned during 1942-45.
Besides the NHLs and NPS areas, the state has approximately 1,000 properties and districts
listed in Idaho on the National Register of Historic Places. Some recently listed properties may not yet be in that system. New listings nation-wide are announced weekly.</ref>