Windley Key Fossil Reef Geological State Park

Windley Key Fossil Reef Geological State Park is located on US 1 at Mile Marker 84.9. This places the state park within Islamorada, Florida, which is below Key Largo and Tavernier on the Keys. The park was formed by Key Largo limestone and fossilized coral. The land was part of the Florida East Coast Railroad. The stone was quarried for the Overseas Railroad in the early 90s.

The quarry was used until the 60s. Visitors can still see some of the quarried sections by visiting the park. There are cross sections in the quarry walls showing the ancient coral. Visitors to the park are welcome to learn about the quarry, how it operated, and more about the early 1900s Florida history. There are natural trails, which are self guided. Picnic tables are also available. The park is open throughout the week, though the visitor center is only open Friday through Sunday from 9am to 5pm. The center offers an in depth look at Windley Key history. The five short trails take visitors into the verdant forests of the keys, with some quarry walls and wildlife. Birds are often on the key.