RPG Insanity

According to the Enemy Guide, there're 4 metal regions in the game: A, B, C, and D. I think I've checked all the islands, and found only A and B regions.

Metal monsters from C and D can be occasionally encountered in other high-level regions (C in the final dungeon, D in the Skelly Adventure area), but their metal regions themselves elude me so far.

Could somebody help me with these two metal regions?

Whispers of fate - well, more of steam - told me that the issue has been resolved by the creator of this topic themselves.

Yep

The metal region D is a small area enclosed by mountains SW from Dennev town ruins. Not sure about the metal region C, though.

Weirdly enough, I think the final metal monster from the D region shows up only in the D region itself, unlike all the other metal monsters, who can be encountered in non-metal areas.  Unless, of course, it was RNG playing tricks on me.