English: An eroded boulder clay cliff This photo shows clearly why these glacial deposits are called boulder clay, consisting as they are of clay and stones of various sizes up to and including large boulders. Till is another name for boulder clay.
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== {{int:filedesc}} == {{Information |description={{en|1=An eroded boulder clay cliff This photo shows clearly why these glacial deposits are called boulder clay, consisting as they are of clay and stones of various sizes up to and including large boulder