From the record
“Outlook station is a railway depot in Outlook in Sheridan County, Montana which was listed on the National Register of Historic Places in 1993 as the Outlook Depot. It has also been known as Soo Line Depot.”
Wikipedia article Outlook station (Montana), CC BY-SA 4.0.
One of 6 National Register listings published here for Sheridan County · listed in 1993 · category: Building.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service