In central New Jersey, just a short distance from New York City, the Continental Army hunkered down in a place called Jockey Hollow for a long, cold, harsh winter of monitoring the British troops across the Hudson River in New York City. Today you can get a feel for this setting -- though it's heavily urbanized these days -- with a visit to Morristown National Historical Park where General George Washington and 10,000-12,000 troops spent what's believed to be the coldest winter on record.