Helping Hand

Here's a quick little piece of 'guerrilla' walling I did along a local trail a couple weeks back. I saw that this tree had fallen during a recent windstorm and I thought I would try and aid it from falling away into the river. So I collected some stone from a nearby creek bed, some logs and some broken slabs of concrete that were laying about and built up a 'corbeled support'. Can you see where I incorporated the wood?