HADDONFIELD, N.J. -- One of the world's most historic dinosaur discovery sites is located in this town of Haddonfield, New Jersey. In 1858, the first nearly-complete skeleton of a dinosaur found anywhere in the world was pulled from a farmer's marl pit here. That fossil -- Hadrosaurus foulkii -- allowed scientists to study the unique anatomy of a dinosaur for the first time. It also became the first dinosaur skeleton ever mounted for display in a museum. This video is a tour of that 1858 excavation site, which is now a National Historic Landmark, and an interview with the man who has maintained its monuments and grounds for 25 years.