Every Lake
Lake Byllesby Reservoir
Built in 1910 to dam the Cannon River, named for a power-company executive.
- 10 ft · first step
- 19 ft
- 29 ft
- 38 ft
- 48 ft
- 57 ft · bottom
About Lake Byllesby Reservoir
Lake Byllesby formed when Northern States Power built a dam across the Cannon River in 1910, creating a reservoir that spans Dakota and Goodhue counties south of the Twin Cities. It was one of the larger hydroelectric projects in the region at the time, and the impoundment took its name from Langdon Byllesby, an executive with the power company that built it. The reservoir covers roughly 1,181 acres, with about ten miles of shoreline running through low bluffs and farmland along the river valley.
The lake sits near Cannon Falls and Randolph, with Lake Byllesby Regional Park on its shore providing public boat access and fishing. Because it's a river impoundment rather than a natural lake, depth is uneven and tied to the dam's operation, with a modeled maximum around 57 feet in the deeper channel stretches. Anglers work it for walleye, bass, and panfish, and the surrounding land is mostly park, farm fields, and scattered cabins rather than dense lake-house development.
- 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 Byllesby Reservoir depth chart, in wood
This is a Lake Byllesby Reservoir depth chart you can hang: 6 stacked layers of birch, each one a depth contour — 10 ft, 19 ft, 29 ft, 38 ft, 48 ft and deeper, down to the deepest hole at about 57 ft. The lake covers about 1.9 square miles. The shape of the bottom is the real one from published soundings, so anglers recognise their drop-offs and points.
A Lake Byllesby Reservoir 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 Byllesby Reservoir 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 Byllesby Reservoir.
Lake Byllesby Reservoir 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 Byllesby Reservoir; the bigger boards carry more shoreline roads and place names.
Is it made from real depth data?
Yes. Lake Byllesby Reservoir 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 57 ft
- 1.9 square miles of water
- Title block, compass rose and depth markers
- Birch plywood, keyhole hanger, made in Waterford, PA
