The Miami River is a 13.7-mile-long (22.0 km) stream in upstate New York and is a part of the Hudson River watershed. The river's headwaters rise in the Adirondack Mountains at (43°36′11″N74°30′12″W) about 10 miles (16 km) northwest of Speculator and flows southeast for about 3 miles (5 km) with Pillsbury Mountain on the southwest and Page Mountain to the northeast. It turns sharply southwest for about one mile and then turns sharply east for about a mile, after which it flows mostly northeast for about 8 miles (13 km) before flowing into Lewey Lake at (43°37′58″N74°24′17″W)