I thought Dracula had arrived in Roanoke — which would be weird, because there’s no place for The Demeter to dock.

Either that or my lifelong descent into madness had finally yielded its first visual hallucinations.

Turns out these thick metal implements were left there by an excavating company.  They’re just smallish plow blades for pushing aside snow, seen from the rear.  (They are open on the other side.)