• Format: Still Image
• Language: unknown
• Published: UM Museum of Anthropological Archaeology
• Subjects: Map: Geographic/natural features; Cockburn; Ice Sheet
• Online Access: http://name.umdl.umich.edu/IC-ANTHRO1IC-X-17589%5D17589; http://quod.lib.umich.edu/cgi/i/image/api/thumb/anthro1ic/17589/17589/!250,250

Generalized outline of the Cockburn moraine system and the perimeter of the ice sheet 8-9000 years ago.