Although there are countless examples around the world, several common themes can be traced throughout the various legends.
Usually the mines are said to contain valuable elements or minerals such as gold, silver or diamonds.
Often there is a map or other document allegedly detailing the history or location of the mine.
Some lost mine legends have a historical basis, and some have none.
Regardless, the lure of these legends is attested by the many books on the subject, and the popularity of publications such as Lost Treasure magazine.