Saint Joan of Arc - Yorktown, Est. 1954 In York County, beginning at the York River and King Creek, southwest along King Creek to the York-James City County line, southeast along the York-James City County, York County-­Newport News city lines to Oriana Road, east on Oriana Road to Harwoods Mill Reservoir, south and east along the Harwoods Mill Reservoir and the Poquoson River to the Chesapeake Bay, north along the Chesapeake Bay to the York River, north along the York River to King Creek, which is the starting point.