
Early photo postcard of the “Mud Turtle” Monument (now submerged) that marks the corner boundary line of New Hampshire, Vermont and Massachusetts. (watermarked, property of the blog editor)
If you have never heard of the ‘Mud Turtle Monument’ you are probably not alone. Yet the placement of this remarkable stone ended a 150 year old dispute between New Hampshire, Massachusetts and Vermont over their shared boundary.
New Hampshire claims all of the Connecticut River along the VT – NH border and this tri-state point was originally placed at the low-water mark, ending at the Massachusetts state line. The monument is still there, only now it sits beneath at least 12-14 feet of water and sand.
Historically the 200-mile Connecticut River’s west bank at the low water mark was considered New Hampshire’s domain and its Vermont boundary. As a series of ten power dams were built along the river, the water height changed. New Hampshire inherited the duty of maintaining most of the bridges across the river. Continue reading




