Lake Mendota / Monona, Madison, Wisconsin 3-D Nautical Wood Chart, 24.5" x 31" Laser etched and cut, hand stained and hand assembled Three-dimensional Baltic wood chart depicting the contours of underwater topography Ready to hang with mounting instructions on the back Dimensions: 24.5h x 31"w, 1-7/8" frame depth Our wood charts are made with Baltic Birch and have a solid wood frame.