What was longer, the Black River Canal or the Chenango Canal?
Black River Canal The Black River Canal was a canal built in northern New York in the United States to connect the Erie Canal to the Black River. The canal had 109 locks along its 35 mi length. Remains of several of the canal's former locks are visible along New York State Route 12 near Boonville.
Blackwater River (Missouri) The Blackwater River is a 79.3 mi tributary of the Lamine River in west-central Missouri in the United States. Via the Lamine and Missouri rivers, it is part of the watershed of the Mississippi River. The Blackwater River was named from the character of its banks and water. The Blackwater River is 16 miles longer than the Lamine River, of which it is a tributary.