"The smokestack stands as an icon, symbolizing the identity of this historic place.
The hospital complex, completed in 1942, relied on the boiler house to provide steam heat during cold Wyoming weather. An essential feature of the boiler house, the smokestack stood as the most prominent structure at the center, as it does now. Of the ten Japanese American Relocation Centers constructed in the U.S. during World War II, Heart Mountain retains the most intact hospital complex, of which the smokestack is the most distinguishing feature"
From "Standing Tall into the Future" sign located at Heart Mountain Relocation Center