finding deep dark biome

I am trying to kill the warden and I don't know were to find a deep dark biome.

Do you mean kill wardens?, there's not a boss like the end dragon called the warden.

I think to find it there is not a way like the stronghall, you just have to find it by mining.

But for especific info. you should watch a youtube video

kk thx

usually found in mountain biomes

Deep darks generate under 5/6 of the new mountain biomes in 1.18/1.19, as well as areas with low erosion. There's a way to find the erosion level on the f3 screen, but this technique is less consistent, and more difficult to explain so I'll go with the mountain technique. On your f3 screen, I'm assuming you know how to find what biome you're in. If you're in these 5 biomes, its almost guarenteed for one to be generated below you.
Snowy Slopes
Stony Peaks
Grove
Jagged Peaks
Frozen Peaks

As a side note from me, the only two good reasons to find the deep dark are for the new blocks, and to find ancient cities. Killing the warden is very dangerous and gives you almost nothing in return

Yeah, killing ONE warden gives you only a type of rock that if you convine it with a compass you can make a compass that if you die tells you where is your stuff. I think it's cool the compass but a bit useless.

I need that compass, for I tend to die a LOT when I have diamonds and/or netherite on me

oh, then yes

You can find echo shards in chests in ancient cities too

ok, thanks