Keith, are you sure it was a tree and not a large shrub? I am a fan of the CVNP. Are you a member of the Photographic Society? It's a neat group of nature photographers dedicated to the Cuyahoga Valley National Park and Metroparks.
It could have been a large shrub. I was only able to photograph the lowest branches, though, which gave me the impression that it was a tree. It was along the Towpath Trail, just across the bridge near the Hunt Farm Visitor Information Center.