Sun Sun Wo Co. was one of the earlier Gold Rush buildings and one of the last adobe structures left. This general store was established and operated by the Chinese from 1851 until 1926. Named after its original owners, Mow Da Sun and his son Sun Kow, it became a major business in the area and eventually branched out to Red Cloud about ten miles northeast of here. The original shelves and counters are still in the store, and evidence indicates that part of the office was used as an opium den. A dirt ceiling and fireproof walls spared the building from the fires that razed the town.