Look at this photo from 1949 at the boat slip [[northern end) enlarge the photo to 800% and you can see the north end of the boat slip has a narrow extension of water going up the entire length of the grounds. I believe this is Campbell creek. But a Ford retiree who worked at the Ford Rouge plant told me of a creek that ran through B Building at ford in the 1930s. He said it was the strangest thing to see this creek run open inside the building.