[1] At its mouth, it becomes part of two large salt marshes that lie on either side of the river.
One of the more historic communities on the Quiddy River was Martin Head, located at the mouth.
Martin Head was a small town that relied on the flow of the river as well as the changing tides of the Bay of Fundy.
As the industry died and the world become more modern, this small community eventually rotted away.
Martin Head is now a place locals go camping and is one of the most picturesque parts of the Fundy Trail.