The Boonslick, or Boone's Lick Country, is a cultural region of Missouri along the Missouri River that played an important role in the westward expansion of the United States, the region takes its name from a salt spring or "lick" in western Howard County, where Nathan and Daniel Morgan Boone, sons of which famed frontiersman, an American pioneer, explorer, woodsman, and frontiersman, whose frontier exploits made him one of the first folk heroes of the United States?