Found just one chunk of this at my local yard waste compost site and have no idea what it is. The split pieces are definitely a yellowish-green color and the who chunk was about 7 in. in diameter and very heavy for it's size, like heavier that same size red oak. I thought maybe red pine at fitst site but the heaviness of it and yellow green split color say no, and no pine smell. Any ideas? I thought split piece kinda looks like locust, but I'm just learning different types of wood spiecies.