Cohas Falls is a stretch of rapids on Merrimack River in Hillsborough County, New Hampshire, in the Northeastern Coastal Zone region. It lies about 3.4 miles southeast of Bedford and roughly 4.8 miles south of Manchester as the crow flies.
The Northeastern Coastal Zone is a rolling, glaciated lowland of oak-pine forest, stony soils and dense settlement from Boston to Long Island Sound. Waterfalls are small, often on former mill streams over granite ledges. Merrimack River carries 5 recorded rapids along its course.
Hillsborough County holds 6 recorded rapids, and several are close by. Goffs Falls, is under a mile away. Griffins Falls, is about 1.4 miles away. Moors Falls, is about 2.6 miles away.
Cohas Falls is located at 42.9261° N, 71.4537° 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 rapid yet.