The walls of Earthen Cycle were created using a rammed earth technique. A mixture of rounded stones from a local riverbed, Portland cement, and clay were poured into a wooden form. Rust and his assistants tamped down the mixture layer upon layer, gradually building up a solid, bound wall structure. The crew removed the wooden form when the desired scale was achieved. Like the installation's sphere forms, the walls will weather and erode releasing sediments, clays and stones into the surrounding grass lot.