After entering the Columbia, they were met by many natives in their canoes, while the crew prepared to take on fresh water. The ship and crew traveled about upriver and traded items such as nails for pelts, salmon, and animal meat over a nine-day period. In addition to naming the river, Gray also named other landmarks such as Adams Point and Cape Hancock. However, many of these places have since been renamed. The farthest point Gray explored upriver is now known as Grays Bay, and the river that flows into it Grays River. These names were not given by Gray, but by William Broughton, George Vancouver's lieutenant, who explored the Columbia in October 1792. Robert Gray had made a chart of the bay and the mouth of the river and a copy was acquired by Vancouver.