I didn’t have to go to a dam or a park. I just stood on our damp, slightly rainy deck and took a few pictures. We don’t get brilliant autumn here because brilliant autumn requires maple trees. Sugar maple trees, actually. They are the ones that turn scarlet, then golden.
Oaks turn dark green, bronze, brown, very dark brown, and fall off. So the bright yellow trees are alder. They turn bright yellow very early, then lose their leaves.
Some of these are sort of painterly. I got creative.