Yankeetown, designated 12W1, is a major prehistoric Woodland-period archaeological site on the Ohio River in southwestern Indiana and a key source for understanding Woodland communities in the lower Ohio Valley. Although river erosion has heavily damaged the site, surveys in 1950 recorded exposed pits, hearths, daub, and possible house remains, along with many artifacts. Yankeetown is especially important for its pottery: more than six thousand sherds are preserved at Angel Mounds State Memorial, and archaeologists made it the type site for the Yankeetown fillet or Yankeetown incised style. Finds from related styles elsewhere point to a broader Late Woodland cultural network.