I may have posted this tree a few years ago. The leaves look like Quaking Aspen, but the tree doesn't match at all.
Big Tree/Small Leaves
You have a fine old specimen of Tilia cordata.
Ditto to Small-leaved Lime Tilia cordata
I should have known this one easily! maybe the lack of green through me off.
These leaves are edible by the way, in case you want to add them to your salad.
Gotta race the Japanese Beetles to get them, though...