Kinsman Falls is a 20-foot waterfall on Cascade Brook in Grafton County, New Hampshire, in the Northeastern Highlands region. It lies about 8.3 miles southwest of Deerfield and roughly 78.1 miles northwest of Portland as the crow flies.
At 20 feet it is on the modest side for New Hampshire, where the typical waterfall with a recorded height stands around 30 feet; it ranks 81st of 115. By form it is a plunge, where the water drops vertically and loses contact with the rock face.
The Northeastern Highlands are the mountains of northern New England and the Adirondacks, with spruce-fir on the summits and northern hardwood forest of maple, beech and birch below, and countless lakes and boulder-strewn brooks. Fast mountain streams drop over granite and gneiss ledges in chains of falls and pools. Cascade Brook carries 9 recorded waterfalls; the biggest of them reaches 240 feet.
Grafton County holds 98 recorded waterfalls, and several are close by. Cascade Brook Falls, a 240-foot cascade waterfall, is under a mile away. Rocky Glen Falls, a 40-foot tiered waterfall, is under a mile away. Basin, The, an 8-foot punchbowl waterfall, is under a mile away.
Kinsman Falls is located at 44.1216° N, 71.6887° 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 exact position has not yet been verified on aerial imagery, so treat the map pin as approximate. Details on trails, parking and access have not been documented for this waterfall yet.