Form of... a house.

OK... now we're getting somewhere.  It took them forever to finally get to this stage of construction.  Mostly because of the hurricane, but I think a bit out of scheduling delay so they could do more than one foundation at a time.  In any event, however, the forms were put up, the gravel was moved to the middle of the forms, and then covered in plastic so it would not wash away.  Then they dug a trench-like moat around the inside of all the wooden forms.  Rebar was then inserted into the trench.