The hill in question — in Lincoln Park in Chicago, overlooking Lake Michigan — is not very big, and didn’t occur naturally. It was born in the 1940s, when a pile of dirt was moved to make room for a tunnel.
When Mr. Octavious first saw the hill, not too far from where he lives in the city, he felt an immediate connection. “When I was little in class and I drew a hill,” he said, “I would draw that shape. That’s the hill in my head.”