Of all places associated with the Revolutionary War perhaps none is more revered than Valley Forge Pennsylvania. For it was here over two centuries ago that America faced it's darkest hour and it's greatest challenge. Yet no military battles were fought here. During the winter of 1777-78 thousands of soldiers died in the snowy encampment. Today more than 4-million people visit the Valley Forge National Historical Park. We examine the archaeological excavations and building preservation.