File:Kyle Spangler anchor quagga mussels - Thunder Bay NMS Michigan.jpg

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Summary

Description	English: Anchor and port rail of the shipwreck of Kyle Spangler in Lake Huron, Thunder Bay National Marine Sanctuary, Michigan, United States. Caption in source document: A 2008 photo shows the same anchor from a similar perspective. Many features are now obscured and have been since 2005. Quagga mussels completely cover the iron shank and flukes, as well as the iron anchor chain. Notably, the two small iron rings, presumably used as part of the apparatus to secure the anchor, are nearly undetectable.
Date	2008 (creation) February 2013 (publication)
Source	National Oceanic and Atmospheric Administration (February 2013), Thunder Bay National Marine Sanctuary: Condition Report 2013 (PDF).
Author	National Oceanic and Atmospheric Administration

Licensing

This image is in the public domain because it contains materials that originally came from the U.S. National Oceanic and Atmospheric Administration, taken or made as part of an employee's official duties.

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