"Typically, an historic site is considered by the National Park Service to contain a single historical feature, while generally a National Historic Park extends beyond single properties or buildings"

In this quote, Rick Renzi is talking about the difference in between a historic site and a National Historic Park. He discusses that a historical site is typically specified by the National Park Service as containing one particular historical function. This could be a building, monument, or other considerable structure. On the other hand, a National Historic Park is more extensive and includes more than just one residential or commercial property or structure. It might include multiple websites, structures, and other functions that are all connected by a common historic theme or significance. Essentially, a historic site is more focused and particular, while a National Historic Park is broader and encompasses a larger location.