Many environmental factors exist along the Lewis and Clark National Historic Trail. Everything from non-native species to untimely releases of water from dams, to the loss of habitats, can have significant impacts to this historic corridor.
Did You Know?
Jefferson sent the Corps of Discovery to find the "most direct & practicable water communication across [the] continent." Although the Corps did not find the water route Jefferson had hoped for, they did explore 4 major rivers: the Missouri, the Columbia, the Snake, and the Yellowstone.