Archaeology Talk at the Buffer on Friday, March 30, 2018. FL Public Archaeology Network to present program at 6:00 pm ET hosted by the St. Joseph Bay State Buffer Preserve. Meet in the Visitor Center to hear Janene Johnson talk about “Going Ballistic: Archaeology of Florida’s Natural Bridge Battlefield. Natural Bridge is located in the St. Mark’s floodplain and is the site of Florida’s second largest Civil War battlefield. Check starfl.com for listings of other activities beginning on Thursday at the library. These events are excellent and are the perfect vessel to learn or relearn about our state history.