Originally posted by caulkman7:

I did join in the Frost Cave testing. I have created a new world to explore. I'm finding it very time consuming to find mountain regions. When I find a Frost Cave after hours of search I find very little in the Caves. Even after thoroughly searching I feel disappointment in how little I do find. Seems like a lot of work for very little reward.

First mistake is JOINING PTR... the caves were released.
Caves are only above the Obsidian line, if you don't see that rock, you are not high enough (giggle).
Swamp crypts are up to 64 m cubed... but cave systems are 128m cubed. There are walls to break through in the cave systems that open them up more.

As for the lack of caves, you are right, there just is not enough of them.