delve where is primeval chamber

i guess this 6 link recipe is there. about how deep is it?
thanks

According to this https://old.reddit.com/r/pathofexile/comments/9crh9h/delve_league_challenges_analysisnewbie_guide/ you need to be atleast at depth 250.

Note that this boss is insanely rare. There are enough people with hundreds of hours finding none. For anyone not intending to spend hundreds of hours this recipe might as well be removed from the game.