A sassafras mill operated in Hickory Valley, processing native sassafras roots into an aromatic oil used in medicine, perfume, and flavoring. A man with a mule regularly dug a ton of roots a day and was paid $14.00. One owner promoted the mill by paying his workers with bills dipped in the oil. In its final years of operation, the Hickory Valley sassafras mill was the only one in the United States.