Category: Geography > Karst
One of the most intriguing aspects of geography is the existence of "karst" landscapes, which are formed from the dissolution of soluble rocks such as limestone, gypsum, and salt. This process creates stunning features like sinkholes, caves, and underground rivers, significantly shaping the terrain and ecosystems above ground. For instance, the famous Mammoth Cave in Kentucky, USA, is part of the longest cave system in the world, extending over 400 miles. These subterranean systems not only serve as habitats for unique species but also play a crucial role in groundwater recharge and the natural filtration of drinking water. The interplay between these underground formations and surface landscapes highlights the dynamic nature of our planet and the hidden complexities of its geography.