Joncy Falls is a waterfall on Angelica Creek in Allegany County, New York, in the Northern Allegheny Plateau region. It lies about 9 miles northeast of Friendship and roughly 54.9 miles southeast of Cheektowaga as the crow flies.
Its height has not been recorded in the source data. By form it is a horsetail, where the water keeps some contact with the bedrock as it falls.
The Northern Allegheny Plateau is a dissected upland of rolling hills and deep valleys in New York and Pennsylvania, with northern hardwood forest and dairy farms. Creeks cut through layered shale and sandstone in gorges lined with waterfalls, as in the Finger Lakes glens.
Allegany County holds 8 recorded waterfalls, and several are close by. Icebox Falls, 30 feet high, is about 6.8 miles away. Hume Falls, is about 12.3 miles away. Wiscoy Falls, is about 13.6 miles away.
Joncy Falls is located at 42.3125° N, 78.0337° W. The listing is based on the World Waterfall Database, one of the sources compiled by the U.S. Geological Survey in its inventory of waterfalls and rapids of the conterminous United States. The creek name is confirmed against the federal Geographic Names Information System. The position was verified on aerial imagery. Details on trails, parking and access have not been documented for this waterfall yet.