Driving around Great Falls, Montana

Great Falls takes its name from the series of five waterfalls in close proximity along the upper Missouri River basin that the Lewis and Clark Expedition had to portage around over a ten-mile stretch; the effort required 31 days of arduous labor during the westward leg of their 1805–06 exploration of the Louisiana Purchase and to the Pacific Northwest Coast of the Oregon Country. Each falls sports a hydroelectric dam today, hence Great Falls is nicknamed "the Electric City". Currently there are two undeveloped parts of their portage route; these are included within the Great Falls Portage, a National Historic Landmark.