With the summer of surveying drawing to a close, the camp passes over the west branch of Conococheague Creek, a territory claimed by the Black Boys and echoing with their deeds. Turning back East for the winter, the crew pass near the site of General Braddock's defeat some years earlier. The scenery and passing of the seasons moves their thoughts to the past, causing Mason and Dixon to wonder on the relation between this defeat and the treatment of British weavers rebelling against wage reduction by James Wolfe, hero of the Abraham Plains. The episode closes during winter and New Year with sledding, drinking, and discussions of altitude and unbounded space.