Analyse @MarkZelinski's tweets
@MarkZelinski
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#HeartOfTurtleIsland book by #MarkZelinski Page 16 Duntroon ON https://t.co/6ez8BRSdqY
Cracks carved by glacial processes in massively bedded rocks at Standing Rock side trail, were once the shorelines of early post-glacial lakes. #Niagara #Escarpment #geology #nature #BruceTrail https://t.co/w8oJQJ3E0y
Cracks carved by glacial processes in massively bedded rocks at Standing Rock side trail, were once the shorelines of early post-glacial lakes. #Niagara #Escarpment #geology #nature #BruceTrail https://t.co/w8oJQJ3E0y