Hadrosaurus foulkii Leidy Site - Credit: Wikimedia Commons
The Hadrosaurus foulkii Leidy Site is a historic paleontological site in Haddonfield, Camden County, New Jersey. Now set in state-owned parkland, it is where the first relatively complete set of dinosaur bones were discovered in 1838, and then fully excavated by William Parker Foulke in 1858. The dinosaur was later named Hadrosaurus foulkii by Joseph Leidy. The site, designated a National Historic Landmark in 1994, is now a small park known as "Hadrosaurus Park" and is accessed at the eastern end of Maple Avenue in northern Haddonfield. Read more on Wikipedia
Source: en.wikipedia.org