Land art is a form of artistic expression that uses natural landscapes as its canvas. Artists create large-scale works using materials found in nature, such as soil, rocks, and plants. This art form often emphasizes the relationship between humans and the environment, encouraging viewers to appreciate the beauty of the natural world. One of the most famous examples of land art is Spiral Jetty, created by artist Robert Smithson in 1970. Located in Utah's Great Salt Lake, this massive spiral structure made of earth and rock is designed to interact with the changing tides and landscape, showcasing the dynamic nature of the environment.