 NY 9N is the longest suffixed route in the state , extending for 143 @.@ 5 miles ( 230 @.@ 9 km ) from Saratoga Springs to Keeseville . The route stretches through four counties — Saratoga , Warren , Essex and Clinton — and serves several villages and hamlets , including Lake George , Ticonderoga , and Elizabethtown . It overlaps its parent route , US 9 , in Lake George and Elizabethtown and meets Interstate 87 ( I @-@ 87 ) four times . 
