Yes it's true. My daughter, eighteen YO and her friends, a fewdays ago completed the notorious BLACK HOLE in Utahs demanding White Canyon.
This is a route that is - to belittle- demanding and most would run like heck from even seeing the beginning of the route. Even today the Park Service has a sign saying Don't even think of it.
Sue and I went down the route and I can report it was not just rough ( we are used to rough) but it was "this will kill you and not notice the difference" kinda trail"..
It has been impassible for maybe five years, evidentally last year a huge flood mashed the plug out of the way,
So Allie, my daughter and her friends did this a few days ago.
She reports it was more "extreme than extreme, 11 out of ten".
The picture is from the net.