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Utah's Spiral Jetty: Iconic... www.visitutah.com

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Smithson, Spiral Jetty... www.khanacademy.org

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Utahns Celebrate the 50th... www.slugmag.com

What will happen to the... www.deseret.com

Spiral Jetty, Robert... umfa.utah.edu

Is Spiral Jetty a barometer... www.sltrib.com

The Environmental Entropy... magazine.urth.co

Robert Smithson's Spiral... news.artnet.com

Utah's Spiral Jetty: Iconic... www.visitutah.com

SPIRAL JETTY by Robert... www.thegreensideofpink.com

Spiral Jetty |... holtsmithsonfoundation.org

Spiral Jetty, Robert... www.researchgate.net

Spiral Jetty Video - Utah... utahstatemagazine.usu.edu

Spiral Jetty: Building an... archive.sltrib.com

SPIRAL JETTY by Robert... www.thegreensideofpink.com

What will happen to the... www.deseret.com