Wikimedi'Òc

Lake Manly system.png - Ras67

Glacial lakes.jpg - Mike McGregor (Can)~commonswiki

Glacial Lake Chicago (14,000 YBP) 7a.jpg - Ronhjones

FMIB 39530 Map showing the condition of things when the ice-front had withdrawn about one hundred and twenty miles, and while it still.jpeg - BMacZeroBot

Ohio glacial geologic map.png - Pi3.124

Fig 12 Map showing drainage of part of northern Montana when the Illinoisan or Iowan Ice at maximum extent.jpg - Chris Light

SPHSP bedrock outcrop 03.jpg - Drdpw

SPHSP bedrock outcrop 02.jpg - Drdpw