Outdoor Artistry: How Well Do You Know Land Art Creations? The "Spiral Hill" and "Broken Circle" earthworks are part of an art installation located in which natural landscape? Sahara Desert Amazon Rainforest Arctic Tundra Boreal Forest None "Stone River," an environmental sculpture consisting of stones placed in flowing water, is the work of which land artist? Richard Long Michael Heizer Nils-Udo Herman de Vries None What land artist is famous for creating the "Lightning Field," an installation consisting of 400 stainless steel poles arranged in a grid in New Mexico? Nancy Holt Richard Long Michael Heizer Walter De Maria None The environmental art piece "Broken Circle and Spiral Hill" is a creation by which artist known for his ephemeral and site-specific installations? Andy Goldsworthy Michael Heizer James Turrell Nils-Udo None Which artist is renowned for creating the iconic environmental artwork "Spiral Jetty" using rocks and earth in Utah's Great Salt Lake? Christo and Jeanne-Claude Robert Irwin Richard Long Robert Smithson None Time's up Most Popular