What about this?
The Mysterious Bay Of Jars Explained
https://www.grunge.com/756660/the-mysterious-bay-of-jars-explained/
The name “bay of Jars” (in Portuguese) was on at least one map in the middle of the 19th century, so, unless the guy making the claim of salting the site has a time machine, complete BS. The accusation against Marx was likewise BS.