https://gizmodo.com/unexplained-monolith-discovered-in-rural-utahs-red-rock-1845745303

Obviously a brilliant prank, but a bit odd given the remoteness/likelihood it could have been a long time before being discovered.  Maybe the artist was hoping it wouldn't be found for years or decades, perhaps bringing fame long after their death?

Doesn't appear to be any easy task to have done the installation.  Probably required a good bit of help and money.

I saw the video without context and immediately thought a Kubrick fan

posted by jmog

Let's try this again...

And so the interwebz discovered the location, and then used historical google earth images to determine it's been there since around 2016.  Which is all barely a little less disturbing than if it actually was aliens.