The large flaw at the top of the stone is very deep and there are an additional 4 flaws higher up the stone. I decide to remove the top 1 foot of the stone. The arrows indicate the main flaw and the broken line the line I will cut to remove the top section. I incorporate the flaw to minimize effort.
The initial cut is made using a flat chisel and a 2 lb maul. The flaw is deepened