The Grand Coulee Dam has been called “man’s greatest creation” that turned the mighty Columbia River “into a slave of man.” A book published five years later called it “the eighth wonder of the world.” It first opened it’s spillway June 1, 1942 to a crowd of 10,000 onlookers. Beautiful little lakes of various shades of blue lie throughout Washington as we travel south. Our journey gives us the opportunity to cycle the Great Coeur D’Alene Trail and the Centennial Trail before completing our loop and returning to Grand Coulee Dam