From the record
“The Grants Pass Supervisor's Warehouse is a historic former national forest administrative facility in Grants Pass, Oregon, United States.”
Wikipedia article Grants Pass Supervisor's Warehouse, CC BY-SA 4.0.
One of 69 National Register listings published here for Josephine County · listed in 1991 · category: Building.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service · the Wikipedia article