where does it originate?
North Lake in Herkimer County
Black River (New York)
The Black River originates at North Lake in the foothills of the Adirondacks, in Herkimer County, about east of Boonville. 
which places are connected by new york state route 12d? Oneida County village of Boonville; and Lewis County village of Lyons Falls. since how may years is the route being used? 113 years (since 1908) which places does the route pass through? Sugar River, Locust Grove community, West Turin when was the last town established? 1796 how is the weather there? Warm-summer humid continental climate. Winter is cold and very snowy are there any rivers? Yes - Black River
wiki:14064246
Black River (New York) [SEP] Course
The Black River originates at North Lake in the foothills of the Adirondacks, in Herkimer County, about east of Boonville. The river flows west into Oneida County then north, past Forestport and Boonville into Lewis County. At Lyons Falls, it is joined by the Moose River from the east just above the eponymous waterfall, where the river drops over a gneiss cliff. Near Glenfield the Black River receives the smaller tributaries of Otter Creek and the Independence River, also from the east. Further north, it passes Lowville, then receives the Beaver River from the east, then the Deer River, its only major western tributary.