Soon turning to the northwest, the route climbs the hills towards the hamlet of Goosetree. Just east of Goosetree, the route turns northward at a junction with Goose Street (CR 159) before crossing into the town of Genoa. Running north through Genoa, NY 90 crosses west through the hamlet of Pine Hollow. The two-lane rural roadway continues west past the northern terminus of East Genoa Road (CR 26E). Passing south of Genoa Rural Cemetery and soon reaching the hamlet of Genoa, where the route junctions with NY 34 at the easternmost end of the community. Crossing west through the residential hamlet, NY 90 crosses Maple Street at the center, leaving just west of North Street.