Scarborough Bluff.

Approximately 13,000 years ago, the edge of the cliff I was standing could have been the shoreline of the glacial lake Iroquois. The exposure of the terrain and the difference in colour provide clue for the source of deposit and the variety of the soil contents. The bracket of exposed grey sand on the edge, was once the bottom part of the glacial. Through paleoenvironmental reconstruction, its rich contents of underwater fossils provide vital clues of what the ecosystem might have looked like in the past.