Lignum, we split 20-25 rounds at the site and while it was hard to split was nothing like your stringy splits. Im really thinking Thornless honey Locust because of the 2" deep seed pods right under the tree. The pods look exactly like HL.
Ok. Here's some more pictures! I almost killed myself going out to get this. We are in the middle of an ice storm!!! There was a layer of wet ice on these.. It's sleeting out now!
The mystery pics sure look a lot like eastern hop hornbeam. Also know as ironwood. It rivals hedge for fuel wood.
Hophorn beam or Ironwood has thorns...The bark is almost scale like...