The universe is said to be almost 14 billion years old. Our own galaxy began to form about 5 billion years ago. The solar system formed at about 4.6 billion years ago, with the earliest traces of life on Earth emerging by about 3.5 billion years ago.
The Canadian Shield is about the same age, and in the Humber, covered with shale and the shale covered by sand and gravel, with a thin layer of topsoil.
As you walk in the valley, you won’t see the bedrock, but you will see the shale, and also the extent of the sand and gravel deposits as you climb up to the cemetery.
Site 6 gives a view of the layers of rock, and Site 8 shows the mix of sand and rock deposited by glaciers.
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