Atlantic Cadastral Data

The Mapping & Boundary Branch performs mathematical offshore boundary location computations and prepares Official Protraction Diagrams (OPDs), and Supplemental Official OCS Block Diagrams (SOBDs) depicting OCS Block information, the Submerged Lands Act Boundary (aka - State Seaward Boundary), Limit of "8(g) Zone", the Continental Shelf Boundary (CSB) which marks the limit of U.S. jurisdiction for offshore mineral development, and corresponding area measurements. The analytical procedures employed and the computer programs utilized to perform various offshore boundary geometric computations are described in OCS Report MMS 99-0006.

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OPD Images

A standard Official Protraction Diagrams (OPD) is 1 degree in latitude by 2 degrees in longitude (at lower latitudes: 0 - 48 degrees). At higher latitudes (48 - 75 degrees) such as Alaska and northern Washington, OPDs are 3 degrees wide. OPD limits usually approximate the standard 1:250,000 scale U.S. Geological Survey topographic map series. The OPDs are numbered using the United Nations International Map of the World Numbering System. OPD names usually coincide with standard topographic sheet names when diagrams include land areas. OPD sheet names relate to land features, or to hydrographic features contained within the limits of the diagram. Shoreline planimetric detail is shown when it falls within the limits of a diagram. Older OPDs were prepared on mylar with manual cartographic methods and then scanned into Adobe .pdf files. Newer OPDs were prepared electronically and converted to Adobe .pdf files. 

NOTE: Atlantic OPDs that show the Submerged Lands Act and Section 8(g) Zone boundaries do not reflect post-2010 shoreline changes.

SOBD Images

A Supplemental Official OCS Block Diagram (SOBD) is prepared for each block intersected by an offshore boundary (Submerged Lands Act Boundary, Limit of "8(g) Zone", National Marine Sanctuaries, etc.). Note that not all OPDs contain such boundaries; therefore not all OPDs have SOBDs associated with them. The zip files offered here contains only current NAD 83 SOBDS. The historic (outdated) SOBDs can be obtained by contacting the Mapping & Boundary Branch. All future activities will be based on the most current SOBDs. 

NOTE: Atlantic SOBDs do not reflect post-2010 shoreline changes.

Image File Formats

The most current approved revision for each Atlantic Region OPD and SOBD may be viewed and downloaded from the list below. OPDs are offered in Adobe (.pdf) format. SOBDs are available as Adobe (.pdf) files that have been compressed with WINZIP.

 

 Individual Atlantic Region OPDs

 OPD Name

 OPD Files

 SOBD Files

Atlantic OPD Index:

 ATL_Index.PDF

(Updated 10/18/10)

Atlantic OPDs PDF File Bundle

 ATL_OPD.zip

 Metadata

Atlantic SOBD PDF File Bundle

 ATL_SOBD.zip 

 Metadata  

NF17-01
Tortugas Valley

 NF17-01-13-MAR-1997.pdf
Approved 13-MAR-1997

 NF17-01.zip

NF17-02
Rompidas Ledge

 NF17-02-13-MAR-1997.pdf
Approved 13-MAR-1997

 NF17-02.zip

NG17-02
Ft. Pierce

 NG17-02-01-APR-2008.pdf
Approved 01-APR-2008

 NG17-02.zip 

NG17-03
Walker Cay

 NG17-03-01-APR-2008.pdf
Approved 01-APR-2008

 NG17-03.zip
(updated 09/02/10)

NG17-05
West Palm Beach

 NG17-05-01-APR-2008.pdf
Approved 01-APR-2008

 NG17-05.zip
(updated 09/02/10)

NG17-06
Bahamas

 NG17-06-01-APR-2008.pdf
Approved 01-APR-2008

 NG17-06.zip
(updated 09/02/10)

NG17-08
Miami

 NG17-08-01-APR-2008.pdf
Approved 01-APR-2008

 NG17-08.zip
(updated 09/02/10)

NG17-09
Bimini

 NG17-09-01-APR-2008.pdf
Approved 01-APR-2008

 NG17-09.zip
(updated 09/02/10)

NG17-10
Dry Tortugas

 NG17-10-01-APR-2008.pdf
Approved 01-APR-2008

 NG17-10.zip
(updated 09/02/10)

NG17-11
Key West

 NG17-11-01-APR-2008.pdf
Approved 01-APR-2008

 NG17-11.zip
(updated 09/02/10)

NG17-12
Andros

 NG17-12-13-MAR-1997.pdf
Approved 13-MAR-1997

 NG17-12.zip

NH17-02
Brunswick

 NH17-02-01-APR-2008.pdf
Approved 01-APR-2008

 NH17-02.zip
(updated 09/02/10)

NH17-03
Hoyt Hills

 NH17-03-23-AUG-1996.pdf
Approved 23-AUG-1996

 NH17-03.zip

NH17-05
Jacksonville

 NH17-05-01-APR-2008.pdf
Approved 01-APR-2008

 NH17-05.zip
(updated 09/02/10)

NH17-06
Stetson Mesa

 NH17-06-23-AUG-1996.pdf
Approved 23-AUG-1996

 

NH17-08
Daytona Beach

 NH17-08-01-APR-2008.pdf
Approved 01-APR-2008

 NH17-08.zip
(updated 09/02/10)

NH17-09
Adams

 NH17-09-23-AUG-1996.pdf
Approved 23-AUG-1996

 

NH17-11
Orlando

 NH17-11-01-APR-2008.pdf
Approved 01-APR-2008

 NH17-11.zip
(updated 09/02/10)

NH17-12
Pillsbury

 NH17-12-13-MAR-1997.pdf
Approved 13-MAR-1997

 NH17-12.zip

NH18-01
Harrington Hill

 NH18-01-01-APR-2008.pdf
Approved 01-APR-2008

 

NH18-02
Taylor

 NH18-02-01-APR-2008.pdf
Approved 01-APR-2008

 

NH18-03
(Unnamed)

 NH18-03-01-APR-2008.pdf
Approved 01-APR-2008

 

NH18-04
Blake Spur

 NH18-04-01-APR-2008.pdf
Approved 01-APR-2008

 

NH18-05
(Unnamed)

 NH18-05-01-APR-2008.pdf
Approved 01-APR-2008

 

NH18-07
Mc Alinden Spur

 NH18-07-23-AUG-1996.pdf
Approved 23-AUG-1996

 

NH18-10
Blake Escarpment

 NH18-10-13-MAR-1997.pdf
Approved 13-MAR-1997

 NH18-10.zip 

NI17-09
Georgetown

 NI17-09-01-APR-2008.pdf
(updated 09/02/10)

NI17-11
Savannah

 NI17-11-01-APR-2008.pdf
Approved 01-APR-2008

 NI17-11.zip
(updated 09/02/10)

NI17-12
James Island

 NI17-12-01-APR-2008.pdf
Approved 01-APR-2008

 NI17-12.zip
(updated 09/02/10)

NI18-01
Rocky Mount

 NI18-01-01-APR-2008.pdf
Approved 01-APR-2008

 NI18-01.zip
(updated 09/02/10)

NI18-02
Manteo

 NI18-02-01-APR-2008.pdf
Approved 01-APR-2008

 NI18-02.zip (17,019 KB)
(updated 09/02/10)

NI18-03
Wraight

 NI18-03-23-AUG-1996.pdf
Approved 23-AUG-1996

 

NI18-04
Beaufort

 NI18-04-01-APR-2008.pdf
Approved 01-APR-2008

 NI18-04.zip
(updated 09/02/10)

NI18-05
Russell

 NI18-05-01-APR-2008.pdf
Approved 01-APR-2008

 NI18-05.zip
(updated 09/02/10)

NI18-06
Hatteras Ridge

 NI18-06-01-APR-2008.pdf
Approved 01-APR-2008

 

NI18-07
Cape Fear

 NI18-07-01-APR-2008.pdf
Approved 01-APR-2008

 NI18-07.zip
(updated 09/02/10)

NI18-08
Marmer

 NI18-08-01-APR-2008.pdf
Approved 01-APR-2008

 

NI18-09
Lanier

 NI18-09-01-APR-2008.pdf
Approved 01-APR-2008

 

NI18-10
Richardson Hills

 NI18-10-01-APR-2008.pdf
Approved 01-APR-2008

 

NI18-11
Wittman

 NI18-11-01-APR-2008.pdf
Approved 01-APR-2008

 

NI18-12
Tibbet

 NI18-12-01-APR-2008.pdf
Approved 01-APR-2008

 

NI19-01
Lippold

 NI19-01-23-AUG-1996.pdf
Approved 23-AUG-1996

 

NI19-04
Evans

 NI19-04-01-APR-2008.pdf
Approved 01-APR-2008

 

NI19-07
(Unnamed)

 NI19-07-01-APR-2008.pdf
Approved 01-APR-2008

 

NJ18-02
Wilmington

 NJ18-02-01-MAY-2006.pdf
Approved 01-MAY-2006

 NJ18-02.zip
(updated 09/02/10)

NJ18-03
Hudson Canyon

 NJ18-03-01-APR-2008.pdf
Approved 01-APR-2008

 

NJ18-05
Salisbury

   NJ18-05-01-MAY-2006.pdf
Approved 01-MAY-2006

 NJ18-05.zip
(updated 09/02/10)

NJ18-06
Wilmington Canyon

 NJ18-06-01-APR-2008.pdf
Approved 01-APR-2008

 

NJ18-08
Chincoteague

  NJ18-08-01-MAY-2006.pdf
Approved 01-MAY-2006

 NJ18-08.zip
(updated 09/02/10)

NJ18-09
Baltimore Rise

 NJ18-09-01-APR-2008.pdf
Approved 01-APR-2008

 

NJ18-11
Currituck Sound

 NJ18-11-01-APR-2008.pdf
Approved 01-APR-2008

 NJ18-11.zip
(updated 09/02/10)

NJ18-12
Hyman

 NJ18-12-23-AUG-1996.pdf
Approved 23-AUG-1996

 

NJ19-01
Block Canyon

 NJ19-01-01-APR-2008.pdf
Approved 01-APR-2008

 

NJ19-02
Veatch Canyon

 NJ19-02-23-AUG-1996.pdf
Approved 23-AUG-1996

 

NJ19-03
Bear Seamount

 NJ19-03-23-AUG-1996.pdf
Approved 23-AUG-1996

 

NJ19-04
Heezen Plateau

 NJ19-04-01-APR-2008.pdf
Approved 01-APR-2008

 

NJ19-05
Powell

 NJ19-05-01-APR-2008.pdf
Approved 01-APR-2008

 

NJ19-06
Muller

 NJ19-06-01-APR-2008.pdf
Approved 01-APR-2008

 

NJ19-07
Jones

 NJ19-07-01-APR-2008.pdf
Approved 01-APR-2008

 

NJ19-08
Uchupi

 NJ19-08-01-APR-2008.pdf
Approved 01-APR-2008

 

NJ19-10
Wilmington Valley

 NJ19-10-01-APR-2008.pdf
Approved 01-APR-2008

 

NJ20-01
Balanus Seamount

 NJ20-01-23-AUG-1996.pdf
Approved 23-AUG-1996

 

NK18-09
Hartford

 NK18-09-01-MAY-2006.pdf
Approved 01-MAY-2006

 NK18-09.zip
(updated 09/02/10)

NK18-11
Newark

 NK18-11-01-MAY-2006.pdf
Approved 01-MAY-2006

 NK18-11.zip
(updated 09/02/10)

NK18-12
New York

 NK18-12-01-MAY-2006.pdf
Approved 01-MAY-2006

 NK18-12.zip
(updated 09/02/10)

NK19-01
Portland

 NK19-01-01-MAY-2006.pdf
Approved 01-MAY-2006

 NK19-01.zip
(updated 09/02/10)

NK19-02
Bath

 NK19-02-01-MAY-2006.pdf
Approved 01-MAY-2006

 NK19-02.zip
(updated 09/02/10)

NK19-03
Jordan Basin

 NK19-03-13-MAR-1997.pdf
Approved 13-MAR-1997

 NK19-03.zip 

NK19-04
Boston

 NK19-04-19-JAN-2005.pdf
Approved 19-JAN-2005

 NK19-04.zip
(updated 09/09/10)

NK19-05
Cashes Ledge

 NK19-05-19-JAN-2005.pdf
Approved 19-JAN-2005

 NK19-05.zip
(updated 09/09/10)

NK19-06
Browns Bank

 NK19-06-13-MAR-1997.pdf
Approved 13-MAR-1997

 NK19-06.zip 

NK19-07
Providence

 NK19-07-01-MAY-2006.pdf
Approved 01-MAY-2006

 NK19-07.zip (11,190 KB)
(updated 09/02/10)

NK19-08
Chatham

 NK19-08-19-JAN-2005.pdf
Approved 19-JAN-2005

 NK19-08.zip
(updated 09/09/10)

NK19-09
Corsair Canyon

 NK19-09-13-MAR-1997.pdf
Approved 13-MAR-1997

 NK19-09.zip

NK19-10
Block Island Shelf

 NK19-10-01-MAY-2006.pdf
Approved 01-MAY-2006

 NK19-10.zip
(updated 09/02/10)

NK19-11
Hydrographer Canyon

 NK19-11-23-AUG-1996.pdf
Approved 23-AUG-1996

 

NK19-12
Lydonia Canyon

 NK19-12-13-MAR-1997.pdf
Approved 13-MAR-1997

 NK19-12.zip 

NK20-10
Stewart

 NK20-10-13-MAR-1997.pdf
Approved 13-MAR-1997

 NK20-10.zip 

NL19-11
Bangor

 NL19-11-01-MAY-2006.pdf
Approved 01-MAY-2006

 NL19-11.zip
(updated 09/02/10)

NL19-12
Eastport

 NL19-12-01-MAY-2006.pdf
Approved 01-MAY-2006

 NL19-12.zip
(updated 09/02/10)

GIS Files 

The various boundaries are also offered as ESRI ArcGIS shapefiles. Shapefiles can be viewed with the free ArcGIS Explorerviewer, ArcGIS, or a variety of other GIS systems. The shapefiles have been zipped using WinZip.

Note: The precise coordinates of a GIS file can be altered slightly by various GIS functions. For that reason, these GIS files are not an Official Record for BOEM offshore boundaries. Only the coordinates shown on Official OPDs, and SOBDs constitute an Official Record for offshore coordinate values.

 

File Description

Zipped Download

Metadata Link

Graphic

Atlantic Planning Area outlines.

ATL-PLAN.zip

Updated (10/12/10) 

metadata Browse-Graphic

Standard OCS Blocks clipped to the Submerged Lands Act (SLA) boundary on the shoreward side(2304 hectares per standard block).

 

ATL_BLKCLIP.zip 
Updated (10/12/10)

metadata

Browse-Graphic 

OCS Block 1/16 Aliquot Parts (144 hectares per standard block)

ATL_ALIQUOTS.zip    
Updated (11/2/2012)
metadata    Browse-Graphic

Official Protraction Diagram (OPD) outlines.

ATL-PROTLMT.zip 
Updated (10/12/10)
metadata Browse-Graphic

Official Protraction Diagram (OPD) outlines clipped to the Submerged Lands Act (SLA) Boundary.

ATL-PROTCLP.zip 
Updated (10/12/10)
metadata Browse-Graphic

The SLA line marks Federal vs. State jurisdiction for Submerged Lands Act purposes.

ATL-SLA.zip 
Updated (10/12/10)
metadata Browse-Graphic

Limit of '8(g)' zone lies 3 nautical miles seaward of the SLA Boundary. See detailed metadata.

ATL-8G.zip 
Updated (10/12/10)
metadata Browse-Graphic
BSEE Oil and Gas Wells           BSEE_Atlantic_Wells.zip 
Updated (03/22/16)
metadata No graphic

The coast line point file used (along with the coast line tangent file) to project the boundaries shown on existing/published OPDs.

ATL-BSLN-PT.zip 
Updated (10/12/10)
metadata

Browse-Graphic

Tangents (primarily Bay Closing Lines) used along with coast line points to project the boundaries on existing/published OPDs

ATL-BSLN-TN.zip 
Updated (10/12/10)

metadata

Browse-Graphic

Continental Shelf Boundary (CSB) marks the limit of U.S. jurisdiction for offshore mineral development.

ATL-CSB.zip 
Updated (10/12/10)

metadata

Browse-Graphic

Federal OCS  Sand and Gravel Borrow (Lease Areas) of the Atlantic and Gulf of Mexico OCS

Federal-Sand-n-Gravel-Lease-Borrow-Areas_gdb.zip 
Updated (07/26/16)

metadata Browse-Graphic