The Lewis and Clark Expedition was a resounding success given the goals set for it by President Thomas Jefferson. Over a two-year period, the Corps of Discovery explored the lands of the Louisiana Purchase all the way to the Pacific Ocean, making discoveries of exploitable natural resources and ushering in generations of settler colonialism and Manifest Destiny, all with but a single casualty. The body of the expedition’s only death, Sgt. Charles Floyd, is now entombed under an obelisk on a bluff overlooking Sioux City, Iowa. Sgt. Floyd, the expedition’s…