I recently visited Cook Forest [1] in northwest Pennsylvania and it is breathtakingly beautiful. It's not just quantitatively different (bigger trees) but also qualitatively -- all towering evergreens in a very deciduous state. It's really sobering to think of how much we lost by clearcutting before we started to think about conservation seriously in the last 120 years or so.

[1] https://en.wikipedia.org/wiki/Cook_Forest_State_Park