A gabion is a cage, cylinder, or box filled with rocks, concrete, or sometimes sand and soil for use in civil engineering, road building, military applications and landscaping.
Gabions are used widely, throughout the world in a variety of retaining wall and river erosion control structures to reduce water flow velocities in streams and waterways to prevent soil erosion by encouraging deposition of fine soil sediments and the subsequent growth of indigenous vegetation.
Gabion technology has evolved over time to the point where it is now. In South Africa the product become available widely since about 1957, and since then has spread throughout Africa as a useful tool to solve soil erosion and retention problems. Having now also been widely used in the architectural and landscaping industries. Gabions are simple to install and provide for many labor intensive job opportunities on the sites where the works are undertaken.