English: Adventure Galley flatboat - “Pioneer Settlers building Adventure Galley on the Youghiogheny”. The image is from the publication, History of the Ordinance of 1787 and the Old Northwest Territory (A Supplemental Text for School Use), Northwest Territory Celebration Commission, Marietta, Ohio (1937).

One party of American pioneers to the Northwest Territory departed from the towns of Ipswich, Massachusetts and Danvers, Massachusetts on December 3, 1787; the other party departed from Hartford, Connecticut on January 1, 1788. The pioneers crossed the mountains and met at Sumrill’s Ferry, near present-day West Newton, Pennsylvania on the Youghiogheny River. During the bitterly cold winter, the men built two flatboats, the forty-five ton ‘Adventure Galley’ also known as the ‘Mayflower’ in honor of their Pilgrim ancestors, and the three-ton ‘Adelphia’. They also built three log canoes. This small fleet of boats carried the pioneers down the Youghiogheny River to the Monongahela River, and then to the Ohio River, and onward to the Ohio Country and the Northwest Territory. They arrived at their final destination, the mouth of the Muskingum River at the confluence of the Ohio and Muskingum rivers, on April 7, 1788.

ColWilliam (talk) 00:08, 11 May 2008 (UTC)