Coon Brook Bog, the source of Coon Brook, is north of US-3 on Coon Brook Road. The road parallels Coon Brook.

High in the mountains of New Hampshire, you’ll find the Connecticut Lakes and headwaters of the Connecticut River. Starting as just a trickle in the small town of Pittsburg, the Connecticut River flows through a chain of lakes, the Connecticut Lakes, as it makes its way from the US-Canadian border in New Hampshire to Long Island Sound. Its journey of 400 miles begins at the height of land, becomes the diving border between Vermont and New Hampshire, then flows through the industrial valley of Massachusetts and into Connecticut before finding the sea.