Thought it was maple.

After cutting and splitting about a half a cord of what I thought was maple,
turned out to be good old Box Elder. The red streaks running through it
made me come in and google Box Elder. Oh well its in the maple family.

Right, it is in the maple family. Good wood for late spring or early fall. We've burned it before.

Respect your Elder.

Last time I brought some box elder home and saw the low btu output I said to myself, "at least its better than cottonwod"

The guy I buy my Shaker boxes from says the really heavily streaked Elder brings as much as 300.00 a block if the red stains are particularly vivid. If you have a nicely marked tree you may want to consider selling the wood. It burns worse than cottonwood so you arent loosing anything btu wize.
They sell blocks on Etsy. I had a really intense raspberry streaked one and I wished I had known that before it all got cooked up in the stove.

Wow. Thanks Apple, I'll keep that in mind. Its streaked red but not sure
what a good amount would be. At the price you quoted I have about
$300,000.00 worth