From the record
“Oregon station is a historic train station in the Ogle County, Illinois county seat of Oregon. The depot was listed on the National Register of Historic Places in July 1997 as the Chicago, Burlington and Quincy Railroad Depot.”
Wikipedia article Oregon station (Illinois), CC BY-SA 4.0.
One of 29 National Register listings published here for Ogle County · listed in 1997 · category: Building.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service