Outer Continental Shelf Official Protraction Diagrams and Lease Maps - Gulf of Mexico Region NAD27

Metadata Updated: May 1, 2019

This file is based on the Mapping and Boundary Branch's Official Protraction Diagram (OPD)and Leasing Maps (LM). Each offshore area is defined by an API Number corresponding to those in the API Bulletin Number D12A. OPDs are numbered using the United Nations International Map of the World Numbering System, and are generally named for land or hydrographic features contained within the limits of the diagram. This data set contains Official Protraction Diagram (OPD) and Leasing Map (LM) outlines in ESRI shape file formats for the BOEM Gulf of Mexico Region. The use of OPDs and LMs makes it easier to refer to individual blocks within a region or planning area. These diagrams were clipped along the Submerged Lands Act (SLA) boundary and along lines contained in the Continental Shelf Boundaries (CSB) GIS data files to show only those blocks or portions thereof within federal jurisdiction. Because GIS projection and topology functions can change or generalize coordinates, these GIS files are NOT an OFFICIAL record for the exact OPD boundaries. Only the paper OPD or a digital image of them serves as OFFICIAL records.Official Protraction Diagrams and other cadastre information the BOEM produces are generated in accordance with 30 Code of Federal Regulations (CFR) Part 556.8 Subpart A, (formerly Part 256.8 Subpart A (2010)) to support Federal land ownership and mineral resource management. Further information on the SLA and development of this line from baseline points can be found in OCS Report BOEM 99-0006: Boundary Development on the Outer Continental Shelf. https://www.boem.gov/BOEM-Newsroom/Library/Publications/1999/99-0006-pdf.aspx Because GIS projection and topology functions can change or generalize coordinates, and because shapefiles cannot represent true arcs, these GIS files are considered to be approximate and are NOT an OFFICIAL record for the exact block coordinates or areas. The Official Protraction Diagrams (OPDs)and Leasing Maps (LMs) and Supplemental Official Block Diagrams (SOBDs) serve as the legal definition for BOEM offshore boundary coordinates and area descriptions and can be found at the following location: https://www.boem.gov/Official-Protraction-Diagrams/. Contains the protraction polygons clipped on the fedstate (SLA-Boundary) as of March 15, 2013. Used ArcCatalog to create shape files.

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Date May 25, 2017
Metadata Created Date May 1, 2019
Metadata Updated Date May 1, 2019
Reference Date(s) January 1, 1999 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from DOI CKAN Harvest Source

Graphic Preview

Image depicting the extent and shapes of the leasing maps and protraction diagrams in the US Gulf of Mexico

Additional Metadata

Resource Type Dataset
Metadata Date May 25, 2017
Metadata Created Date May 1, 2019
Metadata Updated Date May 1, 2019
Reference Date(s) January 1, 1999 (publication)
Responsible Party Bureau of Ocean Energy Management (Point of Contact)
Contact Email
Access Constraints Use Constraints: The data was developed within the U.S. Government; no proprietary rights may be attached to them nor may they be sold to the U.S. Government as part of any procurement of ADP products or services.This data is NOT to be used for any MAS products, Access Constraints: None
Bbox East Long -81.170306
Bbox North Lat 30.246103
Bbox South Lat 23.822778
Bbox West Long -97.211214
Coupled Resource
Frequency Of Update notPlanned
Graphic Preview Description Image depicting the extent and shapes of the leasing maps and protraction diagrams in the US Gulf of Mexico
Graphic Preview File http://www.data.boem.gov/images_opt/graphics/gis/GOMR_Protrac.png
Guid
Harvest Object Id 6e36f3f9-0444-4462-ab1c-9adb1d4912d7
Harvest Source Id 34ce571b-cb98-4e0b-979f-30f9ecc452c5
Harvest Source Title DOI CKAN Harvest Source
Licence none
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester true

Didn't find what you're looking for? Suggest a dataset here.