The Armstrong culture were a Hopewell group in the Big Sandy River Valley of Northeastern Kentucky and Western West Virginia from 1 to 500 CE.
[1] Archaeologist Dr. Edward McMichael characterized them as an intrusive Hopewell-like trade culture or a vanguard of Hopewellian tradition that had probably peacefully absorbed the local Adena in the Kanawha River Valley.
[3] Armstrong peoples primarily focused their human resources on long-distance trade rather than mass building.
Another feature of their culture was the practice of cremation and the building of small burial mounds in the Big Sandy Valley.
They made small flaked knives and corner notched points from Vanport chert from the greater Muskingum River valley area.