USA HISTORY

Detailed explanation-1: -These were large-scale compass traverse maps, small page-size maps sketched in his journals, copies of maps prepared by traders and Indians, and composite maps of the West. The primary maps prepared by Lewis and Clark were called compass traverse maps. These show the route that they traveled each day.

Detailed explanation-2: -On most traveling days, Clark recorded the expedition’s route, tributaries, landmarks, and Native American villages on sketch maps. He also listed distances and course direction changes in his field notes.

Detailed explanation-3: -Lewis and Clark Expedition (1804–06) was a U.S. military expedition, led by Captain Meriwether Lewis and Lieutenant William Clark, to explore the Louisiana Purchase and the Pacific Northwest. The expedition was a major chapter in the history of American exploration.

Detailed explanation-4: -On November 15, 1805, Lewis and Clark and the Corps of Volunteers for Northwestern Discovery reach the Pacific Ocean at the mouth of the Columbia River, one year, six months, and one day after leaving St. Louis, Missouri, in search of the legendary “Northwest Passage” to the sea.