The term applied to the chain of islands stretching southwest from the tip of Florida originates from the Spanish word “cayo,” meaning small island. These islands, mostly low-lying and formed from coral reefs and limestone, are characterized by their unique ecosystem and geographical features. The Spanish, who were among the first Europeans to explore and map the region, used the term to describe these distinctive land formations.
The adoption of “keys” as the name for the region highlights the distinctive geography that sets it apart from the mainland. This terminology not only provides a descriptive identifier but also encapsulates a history of exploration and settlement. The name serves as a constant reminder of the area’s unique formation and its historical roots tied to Spanish exploration and influence.