Rocky Glen Falls is a waterfall on Cascade Brook in Grafton County, New Hampshire, in the Northeastern Highlands region, with a total height of about 40 feet. It lies about 8.3 miles southwest of Deerfield and roughly 78.3 miles northwest of Portland as the crow flies.
At 40 feet it is taller than the typical New Hampshire waterfall of about 30 feet, ranking 45th of 115 with a recorded height. The tallest single drop is 16 feet. The water comes down as a tiered waterfall, falling in several distinct steps one after another. It falls in 3 drops.
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.
There are 98 recorded waterfalls in Grafton County. Kinsman Falls, a 20-foot plunge waterfall, is under a mile away. Cascade Brook Falls, a 240-foot cascade waterfall, is under a mile away. Basin, The, an 8-foot punchbowl waterfall, is under a mile away.
Rocky Glen Falls is located at 44.1239° N, 71.6920° 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.