


Michael J Kirwan Reservoir
Named for a 15-term Youngstown congressman who never lived to see it finished.
- 10 ft · first step
- 20 ft
- 30 ft
- 40 ft
- 49 ft
- 59 ft · bottom
About Michael J Kirwan Reservoir
Michael J Kirwan Reservoir sits on the West Branch of the Mahoning River in Portage and Trumbull counties, Ohio, formed when the U.S. Army Corps of Engineers dammed the river as a flood-control and water-supply project. The surrounding land became West Branch State Park. The reservoir is named for Michael J. Kirwan, a U.S. Representative from Youngstown who served more than three decades in Congress and chaired the House Appropriations subcommittee that funded Army Corps public works projects nationwide.
The reservoir stretches about 23 miles of shoreline over roughly 2,224 acres, its shape tracing the old river valley rather than a single round basin. It runs shallow for a reservoir its size, with a modeled maximum depth near 59 feet. It draws boaters, muskellunge and bass anglers, and hunters using the state park land around it, with towns like Ravenna and Newton Falls nearby and Youngstown a short drive east.
- 6 shore towns named, with a star on each
- 84 roads engraved around the shore, 8 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.
Michael J Kirwan Reservoir depth chart, in wood
This is a Michael J Kirwan Reservoir depth chart you can hang: 6 stacked layers of birch, each one a depth contour — 10 ft, 20 ft, 30 ft, 40 ft, 49 ft and deeper, down to the deepest hole at about 59 ft. The lake covers about 3.7 square miles, and 84 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 Michael J Kirwan 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 Michael J Kirwan 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 Michael J Kirwan Reservoir.
Michael J Kirwan 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 Michael J Kirwan Reservoir; the bigger boards carry more shoreline roads and place names.
Is it made from real depth data?
Yes. Michael J Kirwan 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 59 ft
- 3.7 square miles of water
- 84 shore roads engraved, 8 named
- Title block, compass rose and depth markers
- Birch plywood, keyhole hanger, made in Waterford, PA



