AXE GRINDING STONE
At 76 lbs. this is one of the largest stone tools ever
found in Illinois. The exact find site is no longer known.
But it's believed to have been found somewhere in or
around Calhoun County, Illinois. The side shown in this
picture has a long narrow groove cut into the center of
the stone. It was evidently used to sharpen the cutting
bits of axes. The groove measures 13 inches (33cm) long,
4 1/2 inches (11.4cm) wide and 2 1/16 inches (5.2cm) deep.
There are also at least four small holes near the edge of the
stone which may have been used to crack open nuts.