Benchmarks: November 16, 1990: Florida Keys National Marine Sanctuary is established
Benchmarks: November 16, 1990: Florida Keys National Marine Sanctuary is established by Bethany Augliere Friday, October 12, 2018 Designated in November 1990, the Florida Keys National Marine Sanctuary protects nearly 10,000 square kilometers of ocean surrounding the islands, including North America's only barrier reef. Credit: K. Cantner, AGI. Off the tip of the Florida Peninsula lies the world’s third-largest living coral reef, the Great Florida Reef. The only barrier reef system in North America, it is composed of a system of individual reefs that together extend 270 kilometers ...