UNDATED (AP) —Deep in the mountains of northern Idaho, miles from the nearest town, lays evidence of a little-known portion of a shameful chapter of American history.

There are no buildings, signs or markers to indicate what happened at the site 70 years ago, but researchers sifting through the dirt have found broken porcelain, old medicine bottles and lost artwork identifying the location of the first internment camp where the U.S. government used people of Japanese ancestry as a workforce during World War II.

Today, a team of researchers from the University of Idaho wants to make sure the Kooskia Internment Camp isn't forgotten to history.

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