Question: What are the names in use for a single 93 mi river that flows northwestward through the southern Appalachian Mountains of the southeastern United States, that has a third Sugartown that is located on Sugar Creek, a tributary of the river?
Sentence (from "Savannah River"): The Savannah River is a major river in the southeastern United States, forming most of the border between the states of South Carolina and Georgia.
Relevant evidence: No