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Description: This is a national data collection of data resources managed by the Bureau of Ocean Energy Management (BOEM) for the Outer Continental Shelf (OCS). The data collection is designated as a National Geospatial Data Asset (NGDA) and includes: OCS BOEM Offshore Boundary Lines (Submerged Lands Act Boundary, OCSLA Limit of “8(g) Zone,” and Continental Shelf Boundary), OCS Protraction Polygons - 1st Division, OCS Gulf of Mexico NAD27 Protraction Polygons - 1st Division, OCS Block Polygons - 2nd Division, OCS Gulf of Mexico NAD27 Block Polygons - 2nd Division, Aliquot 16ths Polygons - 3rd Division, and OCS Withdrawal Areas.All polygons are clipped to the Submerged Land Act Boundary and Continental Shelf Boundaries reflecting federal jurisdiction. The Withdrawals depict areas that are permanently or temporarily withdrawn from Outer Continental Shelf leasing or one or all the resources that BOEM manages. The NAD27 Gulf of Mexico Protractions and Blocks have a different protraction and block configuration when compared to the OCS Protraction Polygons - 1st Division and OCS Block Polygons - 2nd Division. The NAD27 Gulf of Mexico data is used for Oil and Gas leasing.These data were created in the applicable NAD83 UTM or NAD27 UTM/SPCS Projection and re-projected to GCS WGS84 (EPSG 4326) for management in BOEM's enterprise GIS. However, the services in this collection have been published in WGS 1984 Web Mercator Auxiliary Sphere (EPSG 3857). Because GIS projection and topology functions can change or generalize coordinates, these data are NOT an OFFICIAL record for the exact boundaries. These data are to be used for Cartographic purposes only and should not be used to calculate area.
Service Item Id: 91da294ecb324f028c2fd0af4cea8143
Copyright Text: Bureau of Ocean Energy Management (BOEM), Office of Strategic Resources, Geospatial Services Division
Spatial Reference:
102100
(3857)
Initial Extent:
XMin: -2.944066041153077E7
YMin: -1862414.7761547696
XMax: 3512311.3894382976
YMax: 1.7464565833348952E7
Spatial Reference: 102100
(3857)
Full Extent:
XMin: -2.00375070672E7
YMin: -1733742.2336000018
XMax: 2.0037507067199998E7
YMax: 1.2930675607E7
Spatial Reference: 102100
(3857)
Units: esriMeters
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Supports Dynamic Layers: false
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