John Roloff (b. 1947) is an American sculptor and conceptual craft artist.[1] He is known for his site-specific work dealing with natural systems and the environment.[citation needed]
During the late 1970s through the early 1990s, Roloff produced a series of site-specific kiln/furnace pieces.[4] In addition to ceramic work and sculpture, Roloff has created numerous works of public art including the work, Green Glass Ship–Deep Gradient/Suspect Terrain, at the Yerba Buena Center in San Francisco.[5]