Grava is a type of sedimentary rock composed mainly of gravel-sized particles. It is often found in riverbeds, beaches, and other areas where water has eroded larger rocks into smaller fragments. Grava can vary in composition, including materials like quartz, limestone, and basalt, depending on the local geology. In construction and landscaping, grava is commonly used as a base material for roads, pathways, and drainage systems. Its ability to allow water to flow through makes it an effective choice for preventing erosion and managing stormwater. Grava is also used in concrete production and as decorative ground cover in gardens.