From the record
“The College Creek Ranger Station, near Imnaha, Oregon, United States, outside of Enterprise, Oregon, was built in 1935. It is located along the Imnaha River in the Wallowa-Whitman National Forest.”
Wikipedia article College Creek Ranger Station, CC BY-SA 4.0.
One of 22 National Register listings published here for Wallowa County · listed in 1991 · category: District.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service