A small adobe building dating from the 1870s, used as a boarding house for the Chinese labourers who worked the vineyards and citrus groves of the Cucamonga Valley. It is one of the very few surviving rural Chinatown structures in southern California — most were burned, demolished, or fell down after the Chinese Exclusion Act ended the labour migration in 1882.
The building is on the National Register and sits behind a chain-link fence at the corner of San Bernardino and Klusman, with an interpretive sign. It is not currently open to the public but is worth a five-minute look as a marker of a chapter of California history that left almost nothing behind.