Cathy was on the money, River supported her and Lee thought so too, a silky oak it is. My app Plant Snap thought it was a Bristlecone Pine, I think. I can't see that it saves the names of what is snapped. It was wrong, regardless. I was getting my she oaks and silky oaks mixed up too.
As I walked through the park, the leaves of this tree were rustling loudly and I only remember such a rustle come from a poplar, but it it is not a poplar I know.
This is likely to be the one I do know.
And a gratuitous photo of three beautiful (fingers crossed) golden elms.