NY 28N begins at the intersection with NY 28 and NY 30 near the hamlet of Blue Mountain Lake within the town of Indian Lake. The highway, concurrent with Route 30, heads north through the hamlet nestled at the base of Blue Mountain, one of the highest peaks in Adirondack Park standing, above sea level. Routes 28N and 30 track north, gaining elevation after leaving Blue Mountain Lake. Nestled between Blue Mountain and Peaked Mountain, Routes 28N and 30 turn northeast. After intersecting Salmon Pond Road, the highways wind through the mountains and hills of the Adirondacks. Mud Pond and South Pond are on the west, and East Inlet Mountain is on the east. After paralleling Long Lake and the base of East Inlet Mountain, the highways enter the hamlet of Long Lake, where they split. Route 30 heads northwest, while NY 28N turns eastward towards Newcomb.