N.Y. Comp. Codes R. & Regs. tit. 6, § 36.2
(j) The Chaumont Bay area means the waters of Lake Ontario in Jefferson County within one half mile of the shores, between Horse Island in the Town of Hounsfield and Tibbet's Light in the Town of Cape Vincent including all the waters of Black River Bay, Chaumont Bay, Chaumont River west of Depauville, and the waters within one half mile of the shores of Grenadier and Fox Islands. Fish named in subdivision (a) of this section may be taken from September 15th through May 15th or other dates as specified by department regulation subject to the following provisions: