Building with the natural stone of Manitoulin Island, Canada is one of the things I’ve learned to do in my time here on our homestead. The video below shows one of the most intricate parts of the job. Click below for a detailed video on how I cut and shape arch stones for a round window opening. This technique can be used with any kind of sedimentary stone. I’m not aware of any other video on the internet that shows how to do this work.