#Andrew King #history #Ottawa Rewind #Ottawa sand dunesANDREW KING: Ottawa’s Secret Sand Dunes(This post originally appeared on Andrew King’s Ottawa Rewind blog) Over 10,000 years ago a body of water covered the City Of Ottawa called The Champlain Sea, a deep sideline of the Atlantic Ocean. It occupied a depression created by a continental glacier, and then it drained away as the giant glacier that once covered the northern hemisphere disappeared and the earth rebounded back into shape. ...