Definition that contains pedi
- hall United States explorer who led three expeditions to the Arctic (1821-1871)
- snake a tributary of the Columbia River that rises in Wyoming and flows westward; discovered in 1805 by the Lewis and Clark Expedition
- clark United States explorer who (with Meriwether Lewis) led an expedition from St. Louis to the mouth of the Columbia River; Clark was responsible for making maps of the area (1770-1838)
- lewis United States explorer and soldier who lead led an expedition from St. Louis to the mouth of the Columbia River (1774-1809)
- stanley Welsh journalist and explorer who led an expedition to Africa in search of David Livingstone and found him in Tanzania in 1871; he and Livingstone together tried to find the source of the Nile River (1841-1904)
- ross Scottish explorer who led Arctic expeditions that yielded geographic discoveries while searching for the Northwest Passage (1777-1856)
- perry United States admiral who led a naval expedition to Japan and signed a treaty in 1854 opening up trade relations between United States and Japan; brother of Oliver Hazard Perry (1794-1858)
- jefferson 3rd President of the United States; chief drafter of the Declaration of Independence; made the Louisiana Purchase in 1803 and sent out the Lewis and Clark Expedition to explore it (1743-1826)
- carson United States frontiersman who guided Fremont's expeditions in the 1840s and served as a Union general in the American Civil War (1809-1868)
- tramp travel on foot, especially on a walking expedition