Mustoe, Highland County, Virginia is situated along what highway that extends for 680 mi?
Mustoe, Highland County, Virginia:  The community is situated along U.S. Route 220 on the banks of the Jackson River. U.S. Route 220:  The highway extends for 680 mi from an intersection with US 1 in Rockingham, North Carolina, to its interchange with New York State Route 17 (NY 17; future Interstate 86 or I-86) in South Waverly, Pennsylvania.
i don't know