From the record
“The Carey Dome Fire Lookout is a fire lookout tower complex located in Payette National Forest, 9 miles north of United States Forest Service Burgdorf Guard Station, near Burgdorf in Idaho County, Idaho. It was listed on the National Register of Historic Places in 1994.”
Wikipedia article Carey Dome Fire Lookout, CC BY-SA 4.0.
One of 42 National Register listings published here for Idaho County · listed in 1994 · category: Building · built in 1934.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service