Cavern 32

 Cavern 32

One shaft up into this cavern with 215 feet of vertical height. Two small chambers and several offshoot shafts make this cave have somewhere around two clear paths, but there are three dead ends and  two shafts up and out.

The edit adds a spell's effect.

This is the spell.

Mongrel Map

Magic User Level: 6
Duration: Permanent
Range: Touch

Create a map of multiple states of the same location, location must already be mapped. For example, part of the map may become gradient labeled, colored based on material, temperature mapped, historically regressed, or otherwise altered.

Topographic, population sizes, geothermal activity, paranormal activity, graffiti surface area... Any kind of metric or map type or specificity you can imagine.