Oswegatchie River.

The Oswegatchie River cuts through the western Adirondacks in two distinct stretches — the Upper and Lower branches — with the Middle Branch draining into Cranberry Lake and the western sections running wild through some of the most remote country in the Park. The West Branch is a legendary multi-day flatwater paddle: slow current, beaver meadows, and backcountry campsites deep enough that you're counting days, not hours, to get in and out. The river has been at the center of every major wilderness debate in the region for fifty years — hydropower, logging roads, and the question of what "forever wild" actually means when a canoe route depends on dams nobody wants to maintain. Access varies wildly depending on which stretch you're talking about; start with the ranger station in Cranberry Lake or Star Lake if you're planning anything serious.