Recently closed - Dennis Oppenheim: 1968: Earthworks and Ground Systems at Haines Gallery. When Oppenheim passed away last year I saw scores of friends online expressing loss, posting pictures of his 1997 sculpture of a tipped-over church Device to Root Out Evil, and paying tribute to his influence as both a conceptual and environmental artist. The exhibition at Haines picked as its focal point a moment relatively early in his career, shortly after he'd moved to New York from the Bay Area and also the year of his first solo show. Oppenheim left literal marks behind on the earth when he was doing things like cutting a one-mile line along the U.S./Canada border or laboriously dragging his body backwards across a sandy beach. Ultimately his ideas and his unapologetic approach to art-making have left the most lasting impression however.