Hedgehog Rapids is a stretch of rapids in St. Lawrence County, New York, in the Northeastern Highlands region. It lies about 8.8 miles northwest of Tupper Lake and roughly 88.9 miles north of Utica as the crow flies.
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.
St. Lawrence County holds 16 recorded rapids, and several are close by. Burnt Island Rapids, is under a mile away. Sols Rapids, is about 3.3 miles away. Moosehead Rapids, is about 5 miles away.
Hedgehog Rapids is located at 44.3034° N, 74.6018° W. The listing is based on the USGS Geographic Names Information System, one of the sources compiled by the U.S. Geological Survey in its inventory of waterfalls and rapids of the conterminous United States. The position was verified on aerial imagery. Details on trails, parking and access have not been documented for this rapid yet.