English: Detail: California (Northern) map. Original scale 1:2,500,000 U.S. Geological Survey, 1972, limited update 1990. "Red Triangle" shark region denoted by file uploader.
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California (Northern) map. Original scale 1:2,500,000 U.S. Geological Survey, 1972, limited update 1990. "Red Triangle" shark region denoted by file uploader.
It is in the public domain, as it was created by the US Government, and then, using the Microsoft Office "Paint" program, I personally made the red triangle and the words denoting the region as the Red Triangle. I release any and all rights to the public domain in perpetuity forevermore.
This map image could be re-created using vector graphics as an SVG file. This has several advantages; see Commons:Media for cleanup for more information. If an SVG form of this image is available, please upload it and afterwards replace this template with {{vector version available|new image name}}.
It is recommended to name the SVG file “Northern California red triangle.svg”—then the template Vector version available (or Vva) does not need the new image name parameter.
This map image was uploaded in the JPEG format even though it consists of non-photographic data. This information could be stored more efficiently or accurately in the PNG or SVG format. If possible, please upload a PNG or SVG version of this image without compression artifacts, derived from a non-JPEG source (or with existing artifacts removed). After doing so, please tag the JPEG version with {{Superseded|NewImage.ext}} and remove this tag. This tag should not be applied to photographs or scans. If this image is a diagram or other image suitable for vectorisation, please tag this image with {{Convert to SVG}} instead of {{BadJPEG}}. If not suitable for vectorisation, use {{Convert to PNG}}. For more information, see {{BadJPEG}}.
Detail: California (Northern) map. Original scale 1:2,500,000 U.S. Geological Survey, 1972, limited update 1990. "Red Triangle" shark region denoted by file uploader.
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