Quick Introduction how this website works (2 Minutes)
Inventory for the whole website, sorted and grouped by categories, countries.
Lists of certain topics
Drill down continents, countries, districts, states...
Full list of countries
Hierarchical set of maps (incomplete!)
Background inforation on Geology, Biology, Caves, Mining, and much more...
Bibligraphy of important books related to caves, mines, and subterranea
A brief list of the very most important websites about underground sights
How many sights are listed on showcaves.com?