Dowsing is the art of psychically locating things hidden under the surface of the earth.
Dowsing may be accomplished either through pure clairvoyance, or the use of any of several tools. The most traditional tool for dowsing is the forked stick. One can also use copper dowsing rods or a pendulum.
Dowsing is used to find things hidden under the Earth, such as underground water, mineral deposits, buried treasure, or ley lines.