Nick...I am Far from a tree identification expert....but it appears you are turning a Black Walnut tree into humble firewood heating fuel?...please say it isn't so Nick? 
Haha, just the small branches, I have 5 logs from this tree alone that I will be milling and hopefully a year or so from now will supply me with plenty of steam toy bases.
What you see in the wood pile is circled in red, the rest was saved. I have lived with these 2 black walnuts above my driveway for 5 years now. The first spring I trimmed them WAY up and wanted to save them because they are over 80 years old, maybe older BUT I am absolutely sick of walnuts all over the driveway, on the cars and the squirrels hiding them everywhere possible. This tree has been half dead since I have lived here, the bottom is losing bark, it’s infested with ants and it only gets about half its leaves and fills a large rolling garbage can 3 times with walnuts every year. Even with all these flaws, it was not an easy decision to take it down.
And by the way, I get $125/face cord for that humble firewood
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Nothing wrong with humble firewood, my family farm has been heated exclusively with it for 50 years.
I am paying $50 to $65 per face cord here in Michigan for oak, that's what we like...has lots of BTU but my stove will burn most any wood dryer than 15% water prefured around 9%
I would go $150 on a face cord (delivered) of black walnut... No idea what the BTU are as it never occurred to me to burn it, we call it black gold around here... Think I see a few candle sticks, ink pen blanks and turning stock in there somewhere...lol
Just teasing....shoot.. I heard them poor folks in Texas was burning there furniture to keep warm in the 100 year storm.