Birch Island Brook Falls is a waterfall on Birch Island Brook in Grafton County, New Hampshire, in the Northeastern Highlands region, with a total height of about 30 feet. It lies about 9 miles south of Deerfield and roughly 72.8 miles northwest of Portland as the crow flies.
At 30 feet it is taller than the typical New Hampshire waterfall of about 30 feet, ranking 55th of 115 with a recorded height. The water comes down as a cascade, descending over a series of rock steps rather than in a single drop.
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.
There are 98 recorded waterfalls in Grafton County. Franconia Falls, a cascade waterfall, is under a mile away. Lincoln Brook Falls, a tiered waterfall, is about 3.4 miles away. Avalanche Falls, a 25-foot horsetail waterfall, is about 4.2 miles away.
Birch Island Brook Falls is located at 44.1028° N, 71.5842° 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.