EarthWorks Geospatial Catalog

Atlantic NAD 83 SLA Baseline Tangents

This data set contains baseline tangent lines in ArcGIS shapefile format for the BOEMRE Atlantic Region. Baseline tangent lines are typically bay or river closing lines used by the BOEMRE to calculate the Submerged Lands Act (SLA) boundary, the Limit of '8(g) Zone', and other offshore boundary lines. These tangent lines would project straight line segments in any projected line, while baseline points would project circular arc segments to the projected boundary. A second file containing baseline points is also available. Additional details are available from: Because GIS projection and topology functions can change or generalize coordinates, these GIS files are considered to be approximate and are NOT an OFFICIAL record for the exact baseline coordinates. The Official Protraction Diagrams (OPDs) and Supplemental Official Block Diagrams (SOBDs) serve as the legal definition for BOEMRE offshore boundary coordinates and area descriptions.
Bureau of Ocean Energy Management, Regulation and Enforcement, Mapping and Boundary Branch
USA, Atlantic Ocean, Exclusive Economic Zone, EEZ, Maine, ME, New Hampshire, NH, Massachusetts, MA, Rhode Island, RI, Connecticut, CT, New York, NY, New Jersey, NJ, Delaware, DE, Maryland, MD, Virginia, VA, North Carolina, NC, South Carolina, SC, Georgia, GA, and Florida, FL
Offshore, Cadastre, Limit of '8(g) Zone', Submerged Lands Act Boundary, SLA, State Seaward Boundary, SSB, Fed State Boundary, Lease blocks, Marine Sanctuaries, Outer Continental Shelf, OCS, OCS blocks, Supplemental Official OCS Block Diagram, SOBD, Bureau of Ocean Energy Management, Regulation and Enforcement, BOEMRE, Oil and gas, Alternative Energy, Renewable Energy, and planningCadastre
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