The Griggstown Cow was a "ghost cow" that was reported to inhabit the Millstone River floodplain and the Griggstown Lock of the Delaware and Raritan Canal in Griggstown, in central New Jersey. It was originally thought to be an urban legend but in November 2002 was discovered to be a living black and white bull that had been roaming in an area where cattle are not normally found.
Read more about Griggstown Cow: History