미국
Thunder Bay National Marine Sanctuary Boundary (polygon)
The Office of National Marine Sanctuaries manages a system of sanctuaries and othermanaged areas around the country. The legal boundaries of These sanctuaries aredefined within the Code of Federal Regulations, at 15 C.F.R. Part 922 and thesubparts for each national marine sanctuary. The GIS compatible digital boundaryfiles for each national marine sanctuary are representations of those legalboundaries and are based on the best available data. These files are availablefor public use at locations defined in this metadata record.