UNDERWATER LOGGING

'Underwater logging' is the process of logging trees from underwater forests. When artificial reservoirs and dams are built, large areas of forest are often inundated; although the trees die, the wood is often preserved. The trees can then be felled using special underwater machinery and floated up to the surface. One such machine is the Sawfish harvester. For more information see http://www.wired.com/wired/archive/15.02/logs.html