This is the Scioto Audubon Metro Park. The ponds were created by digging holes and filling them with dirt. This dirt would then be dug up and carted away, to be replaced by fresh dirt. I understand that this is what is known as "environmental remediation".
It's been a while since I made it over to Schiller Park. I think this is the first time I've seen Umbrella Girl with her umbrella in action. A plethora of butterflies were about, and even a hummingbird. (Said hummingbird refused to sit for his portrait, however.) There's a couple of butterflies left to identify, I'll get to those this evening.