Cavern Storage refers to the practice of utilizing underground caverns for the safe and efficient storage of various materials, including natural gas, petroleum, and compressed air. These caverns are often formed in salt formations or limestone, providing a stable environment that protects stored resources from external elements. This method of storage is advantageous due to its ability to minimize surface land use and reduce the risk of environmental contamination. Additionally, cavern storage can help balance supply and demand in energy markets, making it a crucial component of modern energy infrastructure.