Commune with nature

Commune with nature is a divination spell that allows the user to learn about the surrounding terrain for one mile per level.

Effect
Casting this spell causes the caster to become one with nature, attaining knowledge of the surrounding territory. He instantly gains knowledge of up to three facts among the following subjects: the ground or terrain, plants, minerals, bodies of water, people, general animal population, presence of woodland creatures, presence of powerful unnatural creatures, or even the general state of the natural setting. For example, he could determine the location of any powerful undead creatures, the location of all major sources of safe drinking water, and the location of any buildings (which register as blind spots).

The range of this spell depends on the power of the caster, but is quite limited underground, compared to casting the spell outside. The spell also does not function where nature has been replaced by construction or settlement (such as in dungeons and towns).