southeast. East of the village, it continues on a generally linear routing across farmland to a junction with the northern terminus of NY 38. At this point, NY 104A turns back to the north, following the right-of-way of NY 38 to the hamlet of Sterling. Past the hamlet, the route curves east again to meet NY 3's western terminus north of the hamlet of Crocketts. NY 104A returns to a northward alignment at this junction, paralleling another county line—this time separating Cayuga County from Oswego County—for . The north–south alignment gradually brings NY 104A closer to Lake Ontario, which the route has loosely paralleled from Fair Haven eastward. Eventually, the route swerves to the northeast to cross into Oswego County. Here, the route passes through more farmlands and forests in the town of Oswego as it parallels the Lake Ontario shoreline to the northwest. NY 104A maintains a northeast alignment for another to the hamlet of Southwest Oswego, where it rejoins NY 104. Although the portion of NY 104A from Red Creek to Sterling follows an alignment that takes it as many as from the lake shore, the route is still the closest continuous highway to the shoreline between Red Creek and Southwest Oswego. For this reason, all of NY 104A is part of the Seaway Trail, a National Scenic Byway that extends across most of Upstate New York. The byway continues south from Red Creek on NY 370 and east toward the city of Oswego on NY 104. History In 1908, the New York State Legislature created Route 30, an unsigned legislative route that extended from Niagara Falls to Rouses Point. From Red Creek to Oswego, Route 30 was initially routed on modern NY 104A; however, it was realigned to roughly follow what is now NY 104 between the two locations. When the first set of posted routes in New York were assigned in 1924, the pre-1920 routing of legislative Route 30 between Red Creek and Oswego became part of NY 3, then a cross-state highway extending from the Niagara Frontier to the North Country. US 104 was assigned in April 1935, extending from Niagara Falls to the town of Mexico by way of several previously numbered highways. East of Rochester, the route mostly supplanted NY 3; however, from the junction of Water and Main Streets in Red Creek to Southwest Oswego, it used much of the post-1920 routing