From the record
“The Orofino Main Post Office, known also as U.S. Post Office - Orofino Main, located at 320 Michigan Ave. in Orofino in Clearwater County, Idaho, was listed on the National Register of Historic Places in 1989.”
Wikipedia article U.S. Post Office - Orofino Main, CC BY-SA 4.0.
One of 8 National Register listings published here for Clearwater County · listed in 1989 · category: Building.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service
