Land art, also known as earthworks, is an art movement where natural and found materials are used to create large-scale outdoor sculptures and designs. Some notable land artworks mentioned include Spiral Jetty by Robert Smithson, a spiral-shaped jetty made of rock in Great Salt Lake, Utah. Other examples are A Line Made by Walking by Richard Long, Root-Out-Evil by Dennis Oppenheim, and Double Negative by Michael Heizer, all of which incorporate and alter natural landscapes through sculpture. Sites around the world with geometric patterns carved into the earth like the Nazca Lines in Peru and formations of standing stones like the megaliths at Carnac in France are also discussed.
