Heaterhunter said:
Buds(like the ones that come out in the spring?) and leaf scars(???). Just trying to get educated (sometimes this is futile) :-S
Buds in winter are the same ones that will swell and eventually sprout into leaves in the spring. Leaf scars are places where leaves grew previously. When the leaf falls off it leaves a dent in the twig. In general, if you can get a pic of the twigs, that will help. Closer pics of the bark will help.
I think the overall branching of the tree suggests elm, while the bark looks like it might be ash, but the pics make for a tough ID. I will say that it appears to be a decent firewood tree. It doesn't apear to be willow, poplar or ailanthus, it obviously isn't a 'softwood' like pine or spruce, and I think almost everything else falls in the category 'decent firewood.'