They're Ash. The trunks run roughly 12" - 14" in diameter where they were cut off just above ground; they have about 3' - 4' diameter of root area (with embedded dirt) remaining on them.

I wasn't planning on having them around, but they're being cut off the trunks upon removal and I thought, what the heck?

"Live like you'll die tomorrow, but manage your grass like you'll live forever."
-S. M. Stirling
[Linked Image from i.pinimg.com]