Cavern 3

 Cavern 3

This cavern has lots of spotty areas, which could be mineral deposits I guess. I imagine the entrance to be to the left, with the passage coming in flat, and the bottom could be easily connected to another system.

This cavern has a very large central chamber, and then many passages above and below. A couple passages dead end in the right and lower passages, but the top passages do not terminate as quickly, and all the passages are pretty lengthy. It is 690 vertical feet.

 The following version has crystals aggregating in certain sections, and a simple key is included. In short all the blue is smaller patches of crystals still growing, and the pure white or gradient white is longer passages constricted with crystal growth. Many crystals could be selected, and picking crystals that form in caves carefully and looking at photos of how light interacts with crystalline passages in caves will help anybody trying to imagine or present this map.