1. Interglacial gravel deposit six mile creek at Purifying Station, Light material above ledge Nov. 30, 1928 slide 7383 Collection: Historic Glacial Images of Alaska and Greenland Location: Ithaca, Tompkins, New York, United States New YorkIthaca Date: 1928-11-30 1928 Format: Image Photographer: Ralph Stockman Tarr