This was seen in Massachusetts near the Concord River. I thought it might be a type of Elm tree, but go easy on me if I'm way off. :)
No, you're right on! Looks like an Elm indeed.
There are just a couple likely species -- are the leaves smooth to the touch on top or scratchy?
Despite the name, "Slippery" Elm leaves are scratchy to the touch (on top) while American Elm feels smooth and slippery!
I wish I could remember the feel of the leaves. Unfortunately this is almost an hour away from my house.
I'll call it the Slippery Elm because of the needle point and also I don't have that on my tree list yet. :)