Northern Guam geospatial information server
Karst in northern Guam
Karst is a geological phenomenon that develops in limestone and other soluble rocks through the dissolving action of water. It is a collective term for the surface landscape and subsurface features that form in such rocks and include characteristic landforms such as caves, sinkholes, and springs. Typical of karst terrains is that existence of surface waters is limited and there are few to no rivers or lakes. Drainage is largely subterranean, through underground conduits and other voids.