Altered Landscapes The Photographs of John Pfahl May 29, 1997 - Jul 13, 1997 John Pfahl's Altered Landscape series (19741977) explores the transitory effects of disparate materials (tape, string, lace) placed within landscapes such as deserts, shorelines, and forests. Locate 40.7559068, -73.9836468 May 29, 1997 - Jul 13, 1997 Special Thanks