Multibeam sonar is the state-of-the-art technology used by NOAA and other organizations for mapping water depths, or bathymetry. Below is a sortable list of multibeam sonar datasets from 2003-2013 that are available for the Northeast region. Hover over a listing to see an index map. Click on a record for more information and a link to download the data. Downloads must be selected one at a time, and only files smaller than 1GB can be downloaded. To download large files, go to the file download page or the NOAA National Geophysical Data Center.
| STATE | PLACENAME | DATE | RESOLUTION (m) | SOURCE | |
|---|---|---|---|---|---|
| 3 | MA | Nahant - Gloucester | 2004-05-08 | 5 | MA / USGS |
| 3 | MA | Cape Ann - Salisbury Beach | 2005-09-20 | 5 | MA / USGS |
| 3 | MA | Duxbury - Hull | 2007 | 5 | MA / USGS |
| 3 | MA | Northern Cape Cod Bay | 2008-05-07 | 5 | MA / USGS |
| 3 | MA | Red Brook Harbor | 2009-11-07 | 1 | MA / USGS |
| 3 | MA | Cuttyhunk | 2010-09 | 2.5 | MA / USGS |
| 3 | MA | Buzzards Bay | 2011-05-17 | 5 | MA / USGS |
| 3 | MA | Vineyard Sound | 2011 | 5 | MA / USGS |
| 3 | MA | Chatham Harbor | 2009-09-30 | 1 | NOAA |
| 1 | ME | Gulf of Maine - Scantum Basin | 2013-09-13 | 4, 8, 16 | NOAA |
| 3 | MA | Approaches to Boston Harbor | 2005-08-08 | 2, 2.5 | NOAA |
| 5 | CT | New London Harbor | 2006-06-30 | .75 | NOAA |
| 4 | RI | Anchorages in East Passage | 2006-07-11 | .75 | NOAA |
| 1 | ME | Approaches to Portland | 2005-08-31 | .75 | NOAA |
| 6 | NY | 63rd Street Tunnel | 2007-03-19 | .75 | NOAA |
| 3 | MA | Minots Ledge | 2007-09-14 | .75 | NOAA |
| 3 | MA | Barnstable Harbor | 2007-09-17 | 2 | NOAA |
| 2 | NH | Portsmouth Harbor and Piscataqua River | 2008-05-29 | .2, .5 | NOAA |
| 4 | RI | Providence River and Narragansett Bay | 2008-08-14 | .5 | NOAA |
| 6 | NY | Southeast Extension of Ambrose Channel | 2008-09-05 | 2 | NOAA |
| 5 | CT | New London Harbor | 2009-04-27 | .5 | NOAA |
| 6 | NY | Southern Mahatten Field Examinations | 2009-10-15 | .5 | NOAA |
| 1 | ME | 3 NM southeast of York Harbor | 2009-10-05 | 1, 2 | NOAA |
| 6 | NY | 28 NM southeast of Shinnecook Inlet | 2009-11-10 | 1 | NOAA |
| 6 | NY | South of Stockport Middle Ground | 2010-11-26 | 1 | NOAA |
| 6 | NY | New York Harbor - Yonkers to the George Washington Bridge | 2013-4-30 | 1, 2 | NOAA |
| 1 | ME | Vicinity of Boon Island | 2011-10-05 | .5, 2 | NOAA |
| 6 | NY | NY Harbor and Vicinity | 2012-11-06 | .5 | NOAA |
| 6 | NY | NY Harbor and Vicinity | 2012-11-03 | 1, 2, 4 | NOAA |
| 6 | NY | New York Harbor - Jamica Bay | 2012-11-06 | 1 | NOAA |
| 6 | NY | New York Harbor - Liberty and Ellis Islands | 2013-04-29 | .5 | NOAA |
| 3 | MA | Quicks Hole | 2004-09-01 | .5, 1, 2, 5 | NOAA |
| 3 | MA | Great Round Shoal | 2004-11-02 | 2 | NOAA |
| 5 | CT | Goshen Point to Black Point | 2004-03-05 | 4 | NOAA |
| 5 | CT | Goshen Point to Black Point | 2004-03-05 | 4 | NOAA |
| 6 | NY | The Race | 2003-11-01 | 5 | NOAA |
| 6 | NY | Truman Beach to Inlet Point | 2008-10-27 | .5, 2 | NOAA |
| 6 | NY | West of Six Mile Reef | 2004-11-15 | 1 | NOAA |
| 6 | NY | 4 NM north of Roanoke Point Shoal | 2004-10-13 | 2 | NOAA |
| 3 | MA | Gloucester Harbor | 2003-09-17 | .5 | NOAA |
| 2 | NH | Rye Harbor and Isle of Shoals | 2005-09-12 | 5 | NOAA |
| 4 | RI | West Passage | 2004-07-29 | 2 | NOAA |
| 3 | MA | Edgartown Harbor | 2004-09-27 | 3 | NOAA |
| 6 | NY | East River | 2004-08-04 | .4 | NOAA |
| 6 | NY | Jacobs Point to Albany Rock | 2004-11-11 | 1 | NOAA |
| 6 | NY | Sixmile Reef | 2004-11-15 | .5, 1, 2 | NOAA |
| 6 | NY | Gravesend Bay | 2006-11-00 | 2 | NOAA |
| 3 | MA | Wildcat Knoll | 2005-08-07 | 4, 6 | NOAA |
| 5 | CT | New London Harbor and Approaches | 2005-05-22 | .4 | NOAA |
| 5 | CT | Approaches to Niantic River | 2005-05-06 | .4 | NOAA |
| 6 | NY | North shore of Plum Island | 2008-10-01 | .5, 1, 2 | NOAA |
| 6 | NY | Orient Point to Terry Point | 2008-10-21 | .5, 2 | NOAA |
| 1 | ME | Approaches to Portland | 2005-08-31 | 1 | NOAA |
| 7 | NJ | Seagirt to Chadwick Beach | 2006-09-15 | 1 | NOAA |
| 6 | NY | Lower Bay to Rockaway Inlet | 2006-10-22 | 1 | NOAA |
| 3 | MA | Four NM northeast of Manoment Point | 2007-07-13 | 2 | NOAA |
| 3 | MA | NE Approaches to Cape Cod Bay | 2007-11-06 | .7, 1, 2, 3 | NOAA |
| 6 | NY | 2 NM northeast of Sandy Hook | 2007-09-27 | 1 | NOAA |
| 6 | NY | Rockaway Beach: Rockaway Point to Silver Point | 2009-11-09 | .5, 4 | NOAA |
| 3 | MA | Boston Inner Harbor | 2009-09-14 | .5, 2 | NOAA |
| 3 | MA | President Roads | 2007-09-14 | .5, 5 | NOAA |
| 6 | NY | 6 NM east of Sandy Hook | 2008-07-14 | 2 | NOAA |
| 3 | MA | Gay Head to Cedar Tree Neck | 2008-09-08 | .5, 2 | NOAA |
| 3 | MA | Sow and Pigs Reef | 2008-09-08 | .5 | NOAA |
| 4 | RI | 8 NM west of Gay Head | 2008-08-22 | 2 | NOAA |
| 4 | RI | Providence River and North Narragansett Bay | 2008-08-15 | .5, 2 | NOAA |
| 4 | RI | East Passage | 2011-09-19 | .5, 1, 2, 4 | NOAA |
| 4 | RI | Conanicut Point to Warwick | 2008-08-13 | .5, 4 | NOAA |
| 4 | RI | 7 NM south of Point Judith | 2008-09-30 | 2 | NOAA |
| 4 | RI | 10 NM southeast of Point Judith | 2008-10-01 | 2 | NOAA |
| 6 | NY | 3 NM north of Mulford Point | 2008-10-29 | 2 | NOAA |
| 6 | NY | 5 NM north of Duck Pond Point | 2008-10-29 | .5, 2 | NOAA |
| 3 | MA | Cross Rip Shoal | 2009-05-04 | .5, 1 | NOAA |
| 4 | RI | 7 NM east of Block Island's Balls North Point | 2009-05-19 | 2 | NOAA |
| 4 | RI | East Shore of Block Island: '1BI' buoy to Old Harbor Point | 2009-08-19 | .5, 2 | NOAA |
| 4 | RI | 4 NM south of Point Judith | 2009-08-25 | .5, 1, 2 | NOAA |
| 5 | CT | 3 NM south of the entrance to the Connecticut River | 2009-04-30 | 2 | NOAA |
| 5 | CT | The entrance to the Connecticut River | 2009-05-17 | 1 | NOAA |
| 4 | RI | 3 NM south of Weekapaug Point | 2009-10-14 | .5, 1, 2 | NOAA |
| 4 | RI | Point Judith to Green Hill Point | 2009-10-14 | .5, 1 | NOAA |
| 4 | RI | West Shore of Block Island: Sandy Point to Bluff Head | 2009-08-21 | .5, 2 | NOAA |
| 6 | NY | South of Rockaway Point, Queens | 2009-10-20 | .5, 2 | NOAA |
| 4 | RI | West Passage | 2011-08-23 | 1 | NOAA |
| 4 | RI | East Passage | 2009-08-18 | .5, 4 | NOAA |
| 4 | RI | 6 NM west of Block Island | 2009-08-21 | 2 | NOAA |
| 6 | NY | Rockaway Beach: Seaside to Silver Point | 2009-10-26 | .5, 2 | NOAA |
| 4 | RI | 5 NM west of Block Island | 2009-08-31 | 2 | NOAA |
| 4 | RI | Sakonnet Point to Newport | 2009-08-27 | .5, 4 | NOAA |
| 6 | NY | 14 NM east of Sandy Hook Point | 2009-11-09 | .5, 2 | NOAA |
| 1 | ME | Southern Penobscot Bay | 2010-09-28 | .5, 1, 2, 4, 8 | NOAA |
| 1 | ME | Falls Island, Dennys Bay and Whiting Bay | 2010-09-27 | 1, 2 | NOAA |
| 1 | ME | Cobscook Bay | 2010-10-13 | 1, 2 | NOAA |
| 1 | ME | Eastern Cobscook Bay and Friar Roads | 2010-10-26 | 1, 2, 4, 8 | NOAA |
| 1 | ME | Passamaquoddy Bay | 2010-10-25 | 1, 2, 4 | NOAA |
| 4 | RI | Green Hill to Watch Hill | 2011-10-23 | .5, 1, 2, 4 | NOAA |
| 6 | NY | 3 NM southeast of Fisher Island | 2011-11-16 | .5, 1, 2, 4, 8 | NOAA |
| 6 | NY | Vicinity of Cerberus Shoal | 2011-11-15 | .5, 1, 2, 4, 5 | NOAA |
| 4 | RI | Approaches to the East and West Passage | 2011-10-11 | 1, 2, 4 | NOAA |
| 6 | NY | 7 NM southeast of Montauk Point | 2011-11-16 | .5, 2, 4 | NOAA |
| 5 | CT | Approaches to Norwalk | 2012-09-27 | .5, 2 | NOAA |
| 5 | CT | Offshore of Norwalk | 2012-09-27 | .5, 1, 2 | NOAA |
| 6 | NY | Approaches to Northport | 2012-09-21 | .5, 2, 4 | NOAA |
| 6 | NY | Northport Basin to Nissequogue River | 2012-08-22 | .5 | NOAA |
| 6 | NY | Offshore of Smithtown Bay | 2012-06-27 | .5, 2 | NOAA |
| 6 | NY | Crane Neck Pt to Port Jefferson, NY | 2012-06-28 | .5, 2, 4 | NOAA |
| 6 | NY | 5 NM southeast of Montauk Point | 2013-05-08 | .5, 2, 4 | NOAA |
| 6 | NY | 5 NM south of Block Island | 2012-10-25 | 4 | NOAA |
| 4 | RI | 3 NM south of Block Island | 2012-08-29 | .5, 2, 4 | NOAA |
| 6 | NY | North Shore Beach to Herod Point Shoal | 2012-05-23 | .5, 2 | NOAA |
| 6 | NY | 4 NM north of Herod Point Shoal | 2012-05-30 | 2 | NOAA |
| 1 | ME | Large Green Island | 2012 | 1, 2, 4, 8 | NOAA |
| 1 | ME | Southern Triangles | 2012-08-20 | 1, 2, 4 | NOAA |
| 5 | CT | 4 NM south of Guilford Point | 2012-10-17 | .5, 2 | NOAA |
| 5 | CT | 4 NM south of Falkner Island | 2012-10-10 | 1, 2 | NOAA |
| 6 | NY | Offshore Approaches to New Haven | 2012-11-06 | .5, 2 | NOAA |
| 6 | NY | Jacobs Point to Mattituck Inlet | 2013-04-20 | .5, 2 | NOAA |
| 6 | NY | Mattituck Inlet to Greenport | 2013-04-20 | .5, 2 | NOAA |
| 5 | CT | Vicinity of Falkner Island | 2012-11-06 | .5, 2 | NOAA |
| 6 | NY | East of Nissequogue River to Crane Neck Point NY | 2012-08-07 | .5, 2 | NOAA |
| 5 | CT | Cedar Point to Frost Point | 2012-09-27 | .5, 2, 4 | NOAA |
| 7 | NJ | Northwest of Toms Canyon | 2012-06-22 | 8, 16 | NOAA |
| 7 | NJ | Vicinity of Block Canyon | 2012-06-24 | 8, 16 | NOAA |
| 1 | ME | Portland Harbor | 2012-07-19 | .5, 1 | NOAA |
| 5 | CT | North Shore of Long Island Sound - Saybrook Outer Bar to Salt Works Bay | 2014-05-29 | 1, 2 | NOAA |
| 5 | CT | North Shore of Long Island Sound - Duck Island to Madison Reef | 2014-11-06 | .5, 1 | NOAA |
| 6 | NY | Approaches to New York - 6 NM south of Jones Inlet | 2013-05-28 | .5, 2 | NOAA |
| 7 | NJ | Vicinity of Barnegat Inlet | 2013-10-30 | .5, 1, 4 | NOAA |
| 6 | NY | Vicinity of Southern Long Island - north of Fire Island | 2014-01-13 | .5, 2 | NOAA |
| 6 | NY | Vicinity of Southern Long Island - Shinnecock Inlet | 2014-02-12 | .5, 2 | NOAA |
| 6 | NY | Vicinity of Southern Long Island - Moriches Inlet | 2013-12-31 | .5, 1, 2 | NOAA |
| 6 | NY | Vicinity of Southern Long Island Sound - south of Jones Beach Island | 2014-06-23 | .5 | NOAA |
| 1 | ME | Vicinity of Isles of Shoals | 2013-09-08 | .5, 2, 4 | NOAA |
| 1 | ME | Hampton Beach to Little Boars Head | 2013-09-13 | .5, 2, 4 | NOAA |
| 1 | ME | York Harbor Entrance to Cape Neddick | 2013-09-09 | .5, 2, 4 | NOAA |
| 6 | NY | Approaches to New York - Offshore - 14 NM southeast of Sandy Hook Point | 2013-11-06 | 2, 4 | NOAA |
| 6 | NY | Approaches to New York - Offshore - 11 NM northeast of Shark River Inlet | 2013-11-06 | 2, 4 | NOAA |
| 6 | NY | Offshore - Vicinity of Cholera Bank | 2013-11-22 | 1, 2 | NOAA |
| 1 | ME | Midcoast Maine - Boothbay Harbor, Linekin Bay, Ocean Point | 2015-11 | .5 | ME/BOEM |
| 1 | ME | Midcoast Maine - Southeast of Kennebec River Mouth | 2015-11 | 4 | ME/BOEM |
| 1 | ME | Southern Maine - Southeast of Wells | 2014-10 | 2 | ME/BOEM |
| 3 | MA | 12 NM southeast of Scituate Harbor | 2003-09-19 | 5, 10 | NOAA |
| 3 | MA | 6 NM north of Provincetown | 2003-10-04 | 5, 10 | NOAA |
| 3 | MA | 7 NM northeast of Cohasset Harbor | 2003-09-13 | 5, 10 | NOAA |
| 3 | MA | 15 NM northeast of Scituate Harbor | 2003-10-04 | 5, 10 | NOAA |
| 3 | MA | 14 NM north of Provincetown | 2003-10-04 | 5, 10 | NOAA |
| 3 | MA | Massachusetts Bay | 2003 | 10 | NOAA |
| 3 | MA | Massachusetts Bay | 2003 | 5, 10 | NOAA |
| 3 | MA | 6 NM east of Marblehead Harbor | 2003-09-17 | 5 | NOAA |
| 3 | MA | 7 NM east of Eastern Point | 2003-09-17 | 5 | NOAA |
| 3 | MA | 20 NM east of Eastern Point | 2003-09-30 | 10 | NOAA |
| 3 | MA | 8 NM east of Rockport Harbor | 2003-10-01 | 10 | NOAA |
| 3 | MA | 20 NM east of Rockport Harbor | 2003-10-01 | 10 | NOAA |
| 3 | MA | 15 NM northeast of Halibut Point | 2003-10-02 | 2, 4 | NOAA |
| 3 | MA | 15 NM northeast of Halibut Point | 2003-10-02 | 2, 4 | NOAA |
| 3 | MA | 15 NM northeast of Halibut Point | 2003-10-02 | 2, 4 | NOAA |
| 3 | MA | 15 NM northeast of Halibut Point | 2003-10-02 | 2, 4 | NOAA |
| 1 | ME | Approaches to Portland | 2005-08-31 | 1 | NOAA |
| 2 | NH | Coast of Gerrish Island | 2006-06-15 | .5, 1 | NOAA |
| 3 | MA | 2 NM north of Cape Ann | 2004-03-16 | 2, 4 | NOAA |
| 3 | MA | Provincetown, Caches and Fippennies Ledges | 2005-09-15 | 2, 4, 8 | NOAA |
| 1 | ME | Southwest off Provincetown, MA to the North and East, Caches & Fippennies Ledges | 2005-09-15 | 1, 2, 4, 8 | NOAA |
| 3 | MA | Chatham | 2007-07-17 | 5 | NOAA |
| 2 | NH | White Island to Smuttynose Island | 2009-06-20 | 1 | NOAA |
| 2 | NH | Offshore of Gerrish and Cutts Island | 2012-06-22 | .5, 1, 2 | NOAA |
| 1 | ME | Isle of Shoals - Appledore Island/Gosport Harbor | 2005-06-20 | 1, 2 | NOAA |
| 1 | ME | Castine Harbor and Bagaduce River | 2008-06-20 | .5, 1 | NOAA |
| 1 | ME | Smuttynose Island to Duck Island | 2010-06-22 | 1, 2 | NOAA |
| 2 | NH | Portsmouth Harbor - Fort Point | 2007-06-15 | .5 | NOAA |
| 1 | ME | Kittery - South Gerrish Island | 2007-06-07 | 1 | NOAA |
| 2 | NH | Approaches to Portsmouth Harbor - south of White Island | 2007-06-15 | 1 | NOAA |