


Lake Saint Lawrence
Formed in 1958 when the Moses-Saunders Dam backed up the St. Lawrence River for thirty miles.
- 19 ft · first step
- 38 ft
- 57 ft
- 77 ft
- 96 ft
- 115 ft · bottom
About Lake Saint Lawrence
Lake Saint Lawrence formed in 1958, when the Moses-Saunders Power Dam closed across the St. Lawrence River near Massena, New York. The dam was built jointly by the New York Power Authority and Ontario Hydro as part of the St. Lawrence Seaway and Power Project, a binational effort to generate hydroelectricity and open the river to deep-draft shipping. The rising water flooded farmland and several riverside communities on the Ontario side, known afterward as the Lost Villages; residents were relocated before the reservoir filled. The lake now stretches roughly thirty miles between Massena and Cornwall, Ontario.
The seaway's commercial shipping channel runs through the lake, so freighters share the water with local anglers targeting walleye, smallmouth bass, and northern pike. The south shore runs past Massena and the Akwesasne Mohawk territory, while Waddington and other river towns line the reservoir upstream toward Ogdensburg. Water levels are managed by the dam operators for power generation and navigation, so the lake's level can shift with releases rather than rainfall alone. Ice fishing draws visitors in winter once the current slows enough near shore to freeze safely.
- 24 shore towns named, with a star on each
- 1,896 roads engraved around the shore, 14 of them labeled
- 6 depth layers, each step engraved with its depth in feet
- Compass rose, title block with coordinates, max depth and area; keyhole hanger on the back
Turn it in your hands
Live 3D of the actual cut files — drag to orbit, pinch to zoom. Every road you see is engraved on the real thing.
Viewer not showing? Open it full screen.
Lake Saint Lawrence depth chart, in wood
This is a Lake Saint Lawrence depth chart you can hang: 6 stacked layers of birch, each one a depth contour — 19 ft, 38 ft, 57 ft, 77 ft, 96 ft and deeper, down to the deepest hole at about 115 ft. The lake covers about 57.9 square miles, and 1896 shore roads are engraved around it. The shape of the bottom is the real one from published soundings, so anglers recognise their drop-offs and points.
A Lake Saint Lawrence map for the wall — or a gift
Most of these go to a cabin wall, a lake house entry, or a home office; a lot are gifts — the family that has been on Lake Saint Lawrence for three generations, the retirement move, the first boat. The 12-inch is the desk-and-shelf size; the 24- and 30-inch boards read across a room. Add a line under the title and star your place on the shore, and it becomes the map of your Lake Saint Lawrence.
Lake Saint Lawrence map — the details
How big is the map?
Four sizes: 12, 17, 24 and 30 inches on the long side, from $149. Every size is cut from the same depth data of Lake Saint Lawrence; the bigger boards carry more shoreline roads and place names.
Is it made from real depth data?
Yes. Lake Saint Lawrence is cut layer by layer from published bathymetric soundings — each layer of birch is a depth contour, so the shape of the bottom is the real one, not decorative.
Can I add my own place on it?
Yes. At checkout you can add a line under the title (a family name, a cabin name, a year) and star the spot on the shore that matters to you.
How long does it take?
Made to order in Waterford, Pennsylvania and shipped in 7–10 days; shipping is free in the lower 48.
Can you make a lake that isn't listed?
Any lake in the United States — we hold depth data for 104,419 of them. Search for yours; if it isn't built yet we build it when you order.
- 6 depth layers down to 115 ft
- 57.9 square miles of water
- 1896 shore roads engraved, 14 named
- Title block, compass rose and depth markers
- Birch plywood, keyhole hanger, made in Waterford, PA



