From the record
“The Krassel Ranger Station, near Yellow Pine, Idaho, was built in 1937. It was listed on the National Register of Historic Places in 1992.”
Wikipedia article Krassel Ranger Station, CC BY-SA 4.0.
One of 25 National Register listings published here for Valley County · listed in 1992 · category: District.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service