US 15 crosses Interstate 70 in Frederick, Maryland, with northbound US 15 going on to Gettysburg, Pennsylvania. US 340's northeastern endpoint is at this interchange, photographed in June 2013.
US 15 crosses Interstate 70 in Frederick, Maryland, with northbound US 15 going on to Gettysburg, Pennsylvania. US 340's northeastern endpoint is at this interchange, photographed in June 2013.