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National Marine Sanctuary Digital Boundary Files

Published by Office of National Marine Sanctuaries | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: February 21, 2026 | Last Modified: 2004-01-01T00:00:00.000+00:00
NOAA's Office of National Marine Sanctuaries serves as the trustee for a national network of underwater parks encompassing both marine and Great Lakes waters from Washington state to the Florida Keys, and from Lake Huron to American Samoa. The network includes a system of national marine sanctuaries and marine national monuments. Few places on the planet can compete with the diversity of the National Marine Sanctuary System, which protects America's most iconic undersea natural and cultural resources. The system works with diverse partners and stakeholders to promote responsible, sustainable ocean uses that ensure the health of our most valued ocean and Great Lake places. By investing in innovative solutions, we strengthen these iconic places to address 21st-century challenges while supporting America's commerce and tourism. These unique locations inspire people to visit, value, and steward our nation's iconic ocean and Great Lakes places. The legal boundaries of the national marine sanctuaries are defined within the Code of Federal Regulations, at 15 C.F.R. Part 922 and the subparts therein. The GIS compatible digital boundary files for each national marine sanctuary are representations of those legal boundaries and are based on the best available data.

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EARTH SCIENCE EARTH SCIENCE > HUMAN DIMENSIONS > ENVIRONMENTAL IMPACTS > CONSERVATION EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY EARTH SCIENCE > OCEANS CONTINENT > NORTH AMERICA CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > CALIFORNIA CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > FLORIDA > FLORIDA KEYS CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > GEORGIA CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > GREAT LAKES CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > HAWAII CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > LOUISIANA CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MARYLAND CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MASSACHUSETTS CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MICHIGAN CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NEW YORK CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > NORTH CAROLINA CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > TEXAS CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > WASHINGTON CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > WISCONSIN OCEAN > ATLANTIC OCEAN OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA OCEAN > PACIFIC OCEAN OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > AMERICAN SAMOA OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HAWAIIAN ISLANDS OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HAWAIIAN ISLANDS > HAWAII ISLAND OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HAWAIIAN ISLANDS > KAHOOLAWE OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HAWAIIAN ISLANDS > KAUAI OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HAWAIIAN ISLANDS > LANAI OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HAWAIIAN ISLANDS > MAUI OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HAWAIIAN ISLANDS > MOLOKAI OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HAWAIIAN ISLANDS > OAHU OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > MIDWAY ATOLL OCEAN > PACIFIC OCEAN > EASTERN PACIFIC OCEAN OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN MPA Marine Boundaries NMS National Marine Sanctuary ONMS marine protected area Channel Islands National Marine Sanctuary Chumash Heritage National Marine Sanctuary Corell Bank National Marine Sanctuary Fagatele Bay National Marine Sanctuary Florida Keys National Marine Sanctuary Flower Garden Banks National Marine Sanctuary Gray's Reef National Marine Sanctuary Greater Farallones National Marine Sanctuary Hawaiian Islands Humpback Whale National Marine Sanctuary Lake Ontario National Marine Sanctaury Mallows Bay-Potomac River National Marine Sanctuary Monitor National Marine Sanctuary Monterey Bay National Marine Sanctuary Olympic Coast National Marine Sanctuary Papahanaumokuakea National Marine Sanctuary Stellwagen Bank National Marine Sanctuary Thunder Bay National Marine Sanctuary U.S. National Marine Sanctuaries Wisconsin-Shipwreck Coast National Marine Sanctuary DOC/NOAA/NOS/NMS > National Marine Sanctuaries, National Ocean Service, NOAA, U.S. Department of Commerce National Marine Sanctuary Boundaries

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