File:Barge Helvetia sonar image of wreck.PNG

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Description
English: A w:sonar image of the wreck of the w:barge Helvetia 1873 2 — a former three-masted w:schooner — in the w:Wisconsin Shipwreck Coast National Marine Sanctuary in w:Lake Michigan.
Date
Source Madeline Roth, John Bright, and Russ Green, "Baseline Monitoring Documentation of Maritime Heritage Resources in the Wisconsin Shipwreck Coast National Marine Sanctuary," Report of 2022 Field Operations, Office of National Marine Sanctuaries, National Oceanic and Atmospheric Administration, December 2022, p. 22.
Author w:National Oceanic and Atmospheric Administration

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Public domain
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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Date/TimeThumbnailDimensionsUserComment
current11:49, 10 September 2023Thumbnail for version as of 11:49, 10 September 2023707 × 927 (548 KB)Mdnavman (talk | contribs){{Information |Description = A sonar image of the wreck of the barge {{ship||Helvetia|1873|2}} — a former three-masted schooner — in the Wisconsin Shipwreck Coast National Marine Sanctuary in Lake Michigan. |Source = [https://sanctuaries.noaa.gov/media/docs/20221201-wscnms-field-report-final.pdf Madeline Roth, John Bright, and Russ Green, "Baseline Monitoring Documentation of Maritime Heritage Resources in the Wisconsin Shipwreck Coast National Marine Sanctua...

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