East of Massena, NY 3 followed a series of local roads that parallel the modern divided highway section of NY 37 to Rooseveltown, at which point it rejoined current NY 37. The highway remained on today's NY 37 up to CR 51 northwest of Malone, where NY 3 continued south on CR 51 to modern US 11 (then NY 2) west of the village. After briefly overlapping NY 2 (current US 11) into Malone, NY 3 turned south onto what is now NY 30, following the route to Paul Smiths. Past Paul Smiths, NY 3 continued east along the length of modern NY 86 to Jay, overlapping then-NY 10 from Harrietstown to Saranac Lake in between. Lastly, from Jay to Plattsburgh, NY 3 overlapped then-NY 6 along what is now NY 9N and US 9.