U.S. Federal Route 9 is a north-south highway in Eastern Warren County. It runs from the Saratoga/Warren County Line, near South Glen Falls. This is a Hudson River crossing, on the Cooper's Cave Bridge. The northern boundary of U.S. Rt. 9 in Warren County is at the Warren/Essex County Line, near Schroon. U.S. Rt. 9 passes through the following towns in Warren County. Glenn Falls Queensbury Lake George Warrensburg Chester U.S. Rt. 9 is multi-plexed in Warren County. New York State Route 32, from the Saratoga/Warren County Line, to Glenn Falls. New York State Route 9L, from Glenn Falls to Lake George. New York State Route 149, at Lake George. New York State Route 9N, at Lake George. New York State Route 8, at Chester. U.S. Rt. 9 intersects the following highways in Warren County. Interstate 87, at Glenn Falls. New York State Route 9L, at Glenn Falls. New York State Route 32, at Glenn Falls. New York State Route 254, at Queensbury. Interstate 87, at Queensbury. New York State Route 149, at Queensbury. New York State Route 149, at Queensbury.