2025 Map of Dry Tortugas OE S

About this map

Dry Tortugas National Park dominates this maritime expanse where the Gulf of America meets the Atlantic Ocean. This modern hydrographic record highlights the critical underwater topography south of the main keys, defining the navigational corridors and shallow shoals of Monroe County. The chart traces the deep Straits of Florida and the protected waters of Bird Key Harbor, providing a clear view of the transition between open sea and the fragile reef environment. Geographically, the area is defined by submerged features such as Bird Key Bank and the Southwest Channel, reflecting the complex seafloor that has influenced Caribbean trade routes and naval history for centuries.