Winter camp of George Washington - where the "rabble" of American militia became an army.
The National Historical Park preserves the site and interprets the history of the Valley Forge encampment. The Park contains historical buildings, recreated encampment structures, memorials, museums and recreation facilities.
www.nps.gov/vafo
Wikipedia article:
http://en.wikipedia.org/wiki/Valley_Forge_National_Historical_ParkCategory:
park historic nature conservation park / area 
