This 300 foot high monument commemorates the Battle of Bennington which was actually fought in Walloomsac, New York, 10 miles to the west. The image shows its shadow.
http://www.historicvermont.org/bennington/
http://en.wikipedia.org/wiki/Battle_of_Bennington
http://virtualglobetrotting.com/map/battle-of-bennington-site
http://en.wikipedia.org/wiki/Bennington_Battle_Monument