 The Committee also oversaw the construction of various forts, including Fort Caswell (later called Fort Watauga) at Sycamore Shoals.In July 1776, the Cherokee invaded the Nolichucky, Holston, and Watauga settlements.Although the settlers were chased out of Carter's Valley and the Nolichucky valley, the Holston settlers managed to thwart Dragging Canoe at the Battle of Island Flats (at modern Kingsport) on July 20.