The Northern Pacific Warehouse was built in 1900 to service the railroad that had reached Thompson Falls in the 1880s, and it remains one of the most intact early-twentieth-century commercial buildings in western Montana's smaller towns. It is on the National Register of Historic Places, listed in 1986. The building is a straightforward timber-frame warehouse, nothing ornate, but its solidity reflects the brief optimism of a period when the Northern Pacific was driving settlement across the region.
The warehouse is a useful anchor for understanding the town's economic history. Thompson Falls grew up because the railroad needed a supply point in the Cabinet Mountains corridor, not because of any particular agricultural or mineral wealth. When the railroad's dominance faded and timber operations shifted, the town settled into the quiet county-seat role it occupies today. The building can be appreciated from the exterior.