Big Mound Key-Boggess Ridge Archeological District - Credit: Wikimedia Commons
The Big Mound Key-Boggess Ridge Archeological District is a historic site near Placida, Florida. It is located southeast of Placida, on Big Mound Key. On December 3, 1990, it was added to the U.S. National Register of Historic Places. Read more on Wikipedia
Source: en.wikipedia.org