A Maze and Grace: Alan Shields takes Color Field for a Walk » Alan Shields, Maze, 1981-82. Acrylic and thread on canvas, cotton belting, Velcro, aluminum pipe, 87 x 219 x 219 inches. Courtesy of Greenberg Van Doren Gallery

Alan Shields, Maze, 1981-82. Acrylic and thread on canvas, cotton belting, Velcro, aluminum pipe, 87 x 219 x 219 inches. Courtesy of Greenberg Van Doren Gallery

Alan Shields, Maze, 1981-82. Acrylic and thread on canvas, cotton belting, Velcro, aluminum pipe, 87 x 219 x 219 inches. Courtesy of Greenberg Van Doren Gallery