Hi Philippe,
thank you for your explanation. Now it sounds much better for me.

Nevertheless, I have to tell you that the site you call "Lost City" is currently a closed site which means that no tourist is allowed to enter and there is no guide or permit available. I got my information at the end of may this year from the owners of the Recapture Lodge in Bluff which I think is a very reliable source. I wanted to book a tour there for me and my wife but it wasn't possible any more.

The reason for the closure is that many artefacts have been stolen from this place a while ago. They assume that some people came back the next day after taking a guided tour and robbed the place.
Therefore, I totally support your attitude to not give out information about these sites !

Regards,
Tilman