2012 Map of Great Point OE E

About this map

Atlantic Ocean waters dominate this hydrographic-focused survey off the coast of Massachusetts. The map documents a critical maritime passage defined by submerged hazards and navigational landmarks. Mariners and historians can trace the positioning of the Great Round Shoal Channel, a vital artery through the shifting seafloor. The surrounding area is marked by significant underwater features such as Great Round Shoal, Little Round Shoal, and Grout Round Reef. These labels provide essential data for understanding the historical seafloor topography and the navigation challenges that have long characterized the waters east of the Nantucket and Monomoy regions.