Interstates 85 and 40 remain joined as they continue eastward to the Triangle region, anchored by the cities of Chapel Hill, Durham and Raleigh. West of Durham near Hillsborough, the two highways split, with I-40 heading southeast through Chapel Hill, Durham and Raleigh while I-85 continues eastward through Durham, then northeastward as it exits the city. In between Greensboro and Durham, 85/40 is 8 lanes wide even through the more suburban stretches. Once 85 hits Durham it temporarily widens to 10 lanes. It takes on a more suburban character once it leaves Durham and then heads into rural areas, bypassing Oxford and Henderson before crossing into Mecklenburg County, Virginia.