Mountain Generation

At the moment (7/21/2021) mountains are a great addition but I feel the generation could be expanded upon. We are still in the experimental versions of the caves and cliffs update so of course, there are probably going to be lots of changes. However, I feel as though the generation for mountains is a bit off. It feels like the mountains were slapped onto the existing world generation instead of being an addition to it. I think it would be very immersive if there were chains of mountains that extended for a while instead of just having a few here and there. And maybe some mountain chains would have long valleys in them with only a small stream.  I also think extinct volcanoes would make a fine addition, that would be very cool to see a single mountain in a flat area and be able to go down into it. Lastly, on the topic of biomes, a slider in the world generation menu to change the size of biomes would be a nice feature.  Anyways just a few suggestions to add to the immersion of the mountains and the game in general.