Ukrainian bog oak (morta) has been carbon dated and is approximately 5500-5600 years old. The deep black color is a result of what the trees go through from being submerged in bogs for many thousands of years with the acidic waters and lack of oxygen. We work closely with the sawmill in Ukraine to ensure minimal amounts of defects. There are many many blocks discarded that do not meet our requirements as pipe makers. We only receive the best of the best for our customers.