Is this what I think it is?

My vote is that it’s black locust, I have also seen that dark color to it especially when it has been standing dead for a while.

 

Me too!

 

BL is a funny beast. I don’t recall ever seeing some that dark. I do have splits in the pile that turned red after splitting. Super weird and I wish I knew which logs would do that in advance. I’d make lumber out of them

 

Joe, are you sure it wasnt mulberry? It can have a similar heartwood color as BL, but it weathers to a reddish brown to brown as it ages. Post some pics.
My all mulberry stack in early December.

 

Resembles the black walnut I cut

 

Best I can do. Mostly on the lower left side.

 

I actually disagree on the Black Locust. I’ve seen TONS of it and have access to a lot

to me it looks like Black Walnut or Mulberry

 

Siberian Elm. Smells like the zoo.