Saint Joseph - Petersburg, Est. 1842 In Prince George County, at the juncture of the Appomattox River and the Petersburg-Prince George County line, south and west along the Petersburg-Prince George, Petersburg-Dinwiddie County lines to VA-142, west on VA-142 to US-1, southwest on US-1 to US-460, west on US-460 to VA-632, north on VA-632 to its end, follow a straight line north to the Chesterfield­Dinwiddie County line, west along the Chesterfield-Dinwiddie County line to Chesdin Road, north on Chesdin Road to VA-36, east on VA-36 to Dupuy Road, east on Duput Road to US-1, south on US-1 to the Appomattox River, east along the Appomattox River to its juncture with the Petersburg-Prince George County line, which is the starting point.