Crymlyn Burrows Sculpture is a large-scale earthwork sculpture located in Margam Country Park, Wales, UK. It was created by artist Richard Long in 1977 and consists of a series of shallow depressions and mounds carved into the ground, forming a pattern of concentric circles. The sculpture is approximately 60 meters in diameter and blends seamlessly into the surrounding landscape, making it almost invisible until viewed from above. The work is meant to be experienced by walking around and through it, allowing visitors to engage with the natural environment and the subtle changes in the terrain. Crymlyn Burrows Sculpture is considered a pioneering work in the Land Art movement, which seeks to create art that is integrated with the natural environment rather than existing as a separate entity.