Hello, mapman44!
I found out that slipway (WAY: 437746489) should be mapped as a node or a way, but not a polygon or a multipolygon. All info you can find here: leisure=slipway
Please, fix the problem. :)
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Published using OSMCha: https://osmcha.org/changesets/70752061

#mbx_linters_it
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Published using OSMCha: https://osmcha.org/changesets/111759584

To be precise, removed the duplicate, this road already has left turn restriction.

You're right! Thank you for helping us to understand the problem. Boundary is fixed, please let us know if we made mistakes, we will be happy to improve the data!
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Published using OSMCha: https://osmcha.org/changesets/110293022

https://www.parks.ca.gov/pages/503/files/DonnerMemorialSPFinalWebLayout2017.pdf
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Published using OSMCha: https://osmcha.org/changesets/111244609

Thank you for your comment, but we do not map for the render in accordance with the accepted conventions: osm.wiki/Tagging_for_the_renderer . The link on protected / reserved areas - osm.wiki/wiki/ Tag: boundary% 3Dprotected_area
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Published using OSMCha: https://osmcha.org/changesets/110293022

#mbx_germany_roads
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Published using OSMCha: https://osmcha.org/changesets/111184417

Hi! Thank you for your comment! Borders have been mapped according to the official source: https://www.parks.ca.gov/pages/503/files/DonnerMemorialSPFinalWebLayout2017.pdf but if you have a more accurate source, please let us know, we will be happy to improve the data! :)
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Published using OSMCha: https://osmcha.org/changesets/110293022

Hello! Thank you so much for your comment! Everything has been fixed.
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Published using OSMCha: https://osmcha.org/changesets/109204849

https://www.fs.fed.us/ivm/ ( Interactive Visitor Map )
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Published using OSMCha: https://osmcha.org/changesets/108828032

#mbx_parks_usa
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Published using OSMCha: https://osmcha.org/changesets/108828032