DescriptionPhotographs of the plaque outside Millburn Town Hall marking the site of the last thrust in the Battle of Springfield. The plaque reads: The last and deepest thrust toward Morristown and Washington's supplies was stopped here by the American Militia on June 23, 1780. After a punishing retreat, the British never entered New Jersey again in force. The boulder was installed during the New Jersey Tercentenary celebrations on October 16, 1964.