Saint Charles - Cape Charles, Est. 1886 In Northampton County, beginning at the juncture of Chesapeake Bay and Nassawadox Creek, northeast along Nassawadox Creek to V A-692, east on V A-692 to V A-606, north on V A-606 to VA-605, east on VA-605 to US-13, north on US-13 to VA-604, east on VA-604 to VA-600, north on V A-600 to V A-660, east on V A-660 to the Machipongo River, east along the Machipongo River to Hog Island Bay, east along Hog Island Bay through Quinby Inlet to the Atlantic Ocean, south and west along the Atlantic Ocean to Chesapeake Bay, north along Chesapeake Bay to Nassawadox Creek, which is the starting point.