2025 Map of Seahorse Key

About this map

Atsena Otie Key and the surrounding island cluster anchor this coastal survey of the Cedar Keys archipelago. The map documents a landscape defined by tidal shifts and maritime passage, centered on the Main Ship Channel and the protective sweep of Seahorse Reef. For historians and genealogists, the presence of the Atsena Otie Cem on its namesake island provides a critical point of reference for the region's early settlement history. The archipelago extends through a series of significant landforms including North Key, Deadmans Key, and Snake Key, separated by navigable waters like Deadmans Channel. This contemporary survey by the U.S. Geological Survey captures the intricate relationship between the low-lying keys and the Gulf of America, tracing the shoals of the West Bank and East Bank that have dictated navigation in these waters for generations.