old stacked wood pile that was here when i moved in, i'm guessing it's at least 6-8 years old. Cut, but not split. Most likely it's black walnut, possibly some hackberry. some of the logs on the ground show very early stages of rot. Biggest clue for me is - it doesn't weigh much, it's very light and makes me think it's lost a lot of mass over the (uncounted) seasons. The ends are quite dark/aged.....any rules-of-thumb for determining if I should just let it go and move on? follow-up question - is there a downside to burning near-rotten wood in the stove?