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Version 4.0 SGH Map provides significant changes and modifications from previous versions. The major modifications from previous versions are as follows: 1. Merged in new local-scale habitat maps from detailed mapping at 13 sites over Washington, Oregon, and Northern California. 2. Implemented numerous attribute table clarifications and modifications including a clarification of the use of primary, secondary lithologic type. 3. CMECS Substrate Component codes added by crosswalking SGH codes to CMECS SC codes. 4. Appended habitat polygons for Northern California from the 2005 EFH Consolidated GIS Volume 1 (2004) data set geohab_woc.shp developed by Gary Greene and the Center For Habitat Studies at Moss landing Marine Labs. Significant modifications or updates to continental shelf and slope habitat types of Northern California were made to the Greene et al. map based upon newly available bathymetry in the region. 5. Appended California State Waters mapping Program Tier II map products for northern California. The Tier II habitat maps used in this regional habitat map were acquired, processed, archived, and distributed by the Seafloor Mapping Lab of California State University Monterey Bay and are available in their origianal form at: http://seafloor.otterlabs.org/SFMLwebDATA.htm", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 102100, "latestWkid": 3857 }, "copyrightText": "Please credit the Oregon State University, Active Tectonics & Seafloor Mapping Lab (AT&SML), NOAA Fisheries Northwest Fisheries Science Center, and the Bureau of Ocean Energy Management when using this dataset. Additional contributions provided by: the Oregon Department of Fish and Wildlife, NOAA Biogeography Branch, and The Nature Conservancy. Additional map product inputs were provided by: the Seafloor Mapping Lab of California State University Monterey Bay, the Center for Habitat Studies at Moss Landing Marine Labs, the Olympic Coast National Marine Sanctuary, and NOAA Fisheries Northwest Fisheries Science Center. larger Work Citation: Goldfinger C, Henkel, SK, et al. 2014. Benthic Habitat Characterization: Volume 1 Evaluation of Continental Shelf Geology Offshore the Pacific Northwest. US Dept. of the Interior, Bureau of Ocean Energy Management, Pacific OCS Region. 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