Here's a couple of pictures of part of a shed. I think this is the end of the main beam but I'm not sure if it's just a tine that comes off of the main beam I'd love to see the rest of the rack. What do you all think this is?

I don't think its a shed. I think you found a broken tine. It also looks like the end of the main beam to me.

Probably snapped off in a fight.

It was busted off.

It does look like a main beam, but not like a shed. Look at the end. Its broken off in a jagged pattern that indicates it snapped.
BigBuck95