Federal photograph of the tide-gate mechanism controlling exchange with the upstream river and marsh. The structure is downstream of the Marginal Drive landscape.
Evidence, credit & reuse: Public domain in the United States: federal employee work, PD-USGov-FWS. Original Flickr file retained. Resized and JPEG recompressed only. Original: https://www.flickr.com/photos/usfwsnortheast/14907004435/
Source: Tom Sturm / U.S. Fish and Wildlife Service, Northeast Region
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West River self-regulating tide gates Date: 2014-07-09 Federal photograph of the tide-gate mechanism controlling exchange with the upstream river and marsh. The structure is downstream of the Marginal Drive landscape. Source: https://commons.wikimedia.org/wiki/File:West_River_Tide_Gates_(14907004435).jpg Credit: Tom Sturm / U.S. Fish and Wildlife Service, Northeast Region Rights: Public domain in the United States: federal employee work, PD-USGov-FWS. License: https://commons.wikimedia.org/wiki/File:West_River_Tide_Gates_(14907004435).jpg#Licensing Notes: Original Flickr file retained. Resized and JPEG recompressed only. Original: https://www.flickr.com/photos/usfwsnortheast/14907004435/
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Silent Grounds Collective, Marginal Drive and the West River landscape, SGC-MDR-026, MDR-002, “West River self-regulating tide gates.” Source: Tom Sturm / U.S. Fish and Wildlife Service, Northeast Region. https://commons.wikimedia.org/wiki/File:West_River_Tide_Gates_(14907004435).jpg. Research edition, accessed 2026-09-08.