 The principal tributaries of this stream are Canaseraga, Honeoye, and Conesus creeks from the south, and Oatka and Black creeks from the west.Honeoye, Canadice, Hemlock, and Conesus lakes—four of the Finger Lakes—lie within the Genesee Basin.The third subdivision includes the Oswego River and its tributaries, and the small streams flowing into Lake Ontario between the Genesee and Oswego rivers.