What Did Lewis And Clark Discover On Their Expedition?
What Did Lewis And Clark Discover On Their Expedition? But during their 8,000-mile journey from Missouri to the Pacific Ocean and back between 1804-1806, Lewis and Clark discovered 122 animal species, including iconic American animals like the grizzly bear, coyote, prairie dog and bighorn sheep. What 3 things did Lewis and Clark discover? Osage orange.