2015 Map of Horseshoe Keys

About this map

Horseshoe Keys and the surrounding marine landscape of Monroe County define this segment of the Florida Keys. The map details a complex maritime environment dominated by the Atlantic Ocean, where shallow-water features like Bullfrog Banks, Sideboard Bank, and Jack Bank dictate local navigation. The southern portion of the sheet reveals a string of small islands, including Little Spanish Key and Crawl Key, positioned along the vital Intracoastal Waterway. This 2015 survey emphasizes the ecological and navigational character of the region, noting hazardous areas such as the Sunken Coral Heads. The map serves as a record of these low-lying landforms and the established channels like Big Spanish Channel that provide passage through the mangrove-fringed keys and coral formations.