Spiral Jetty's strange markings deliberately reference prehistoric architecture - as well as American, Indian petroglyphs found in Utah, early spirals are found in many places in the Americas.

《螺旋形防波堤》的奇怪标记故意参考了史前建筑，以及在犹他州发现的美国、印度岩画，早期螺旋在美洲的许多地方都发现了。