Divining Rod

By casting divining rod upon a tree or piece of wood, you request simple knowledge from the nature spirits to locate an object or lead you to water, natural shelter or edible food. The rod points in the direction of the objective of the spell. The rod does not necessarily lead you past dangers or obstacles, just in a direct path to the requested necessity. The rod may sense the location only if the objective is within the radius of the spell. The rod reveals nothing else. The rod detects water underground only if the source is within 10 ft. of the surface.

Divining rod cannot detect magical items, invisible things or things that are magically hidden.

(is transcribed from the 2e Wizard's Handbook)