With this app you will have the ability to locate caves and mines within the United States, the mine located part even tells you what element they were or are minning for and if it's a producer or a past producer aka "abandoned mine" .It also tells you what type of mine it is a surface mine or underground mine etc.
!!!Remember mine and caves can be very dangerous and some of these might be on private property !!! This app is for reference Only!! we do not recommend or in no way suggested anyone should go in to these.