Robert Smithson is widely regarded as the father of Land Art, having coined the term and creating influential works such as "Spiral Jetty".

Michael Heizer's "Double Negative" is a large-scale earthwork consisting of two trenches cut into the desert floor.

Walter De Maria's "Lightning Field" is an installation of 400 stainless steel poles arranged in a grid pattern, designed to attract lightning strikes.

Nancy Holt's "Sun Tunnels" is a series of four concrete tunnels aligned with the sunrise and sunset on the summer and winter solstices.

Robert Smithson's "Spiral Jetty" is a large-scale earthwork consisting of a spiral-shaped jetty made of black basalt rocks.

James Turrell's "Roden Crater" is an ongoing project that involves the transformation of a volcanic crater into an observatory and artwork.

Walter De Maria's "Earth Room" is an indoor installation consisting of a room filled with 250 cubic yards of dirt.

Richard Long's "A Line Made by Walking" is a work created by walking a straight line across the Sahara Desert.

Richard Long's "Broken Circle & Spiral Hill" is a large-scale earthwork consisting of a broken circle and a spiral hill.

Andy Goldsworthy's "Ephemeral Art" refers to his temporary art installations made from natural materials, such as leaves, twigs, and stones.

Ugo Rondinone's "Seven Magic Mountains" is a large-scale installation consisting of seven colorful rock towers in the Nevada desert.

Maya Lin's "Vietnam Veterans Memorial" is a black granite wall inscribed with the names of American soldiers who died in the Vietnam War.

H. Peter Stern founded the "Storm King Art Center," a 500-acre outdoor museum dedicated to exhibiting large-scale sculptures.

Christo and Jeanne-Claude's "Wrapped Reichstag" involved wrapping the Reichstag building in Berlin with fabric.

Elizabeth Monoian founded the "Land Art Generator Initiative," a non-profit organization that promotes sustainable public art projects.