Manuel Lisa and Fort Lisa

Decatur County, IA

In 1846 Iowa entered the Union as the 29th state, electing its first officials and adopting a constitution in a single formative year on the western frontier. That same era saw the Pottawattamie people pressed out of the region, one chapter in the long displacement of Native nations as American settlement advanced across the prairie. This interpretive marker in Decatur County gathers those threads into a portrait of Iowa's beginnings.

Leavenworth, KS

This stone wall dates to 1827, the founding year of the military post that became Fort Leavenworth, and reflects the frontier fortifications raised in the earliest days of the U.S. Army's westward presence. Built during a period of tension between the government and Plains nations, it stands as a physical trace of the fort's origins on the edge of settled America.

Leavenworth, KS

This marker along the Lewis and Clark Trail quotes from William Clark's journal describing the Corps of Discovery's passage near this spot on the Missouri River. In 1804 the expedition traveled up this stretch on its epic journey to the Pacific, mapping the land, recording its peoples and wildlife, and opening the West to American imagination. Clark's daily entries remain a vivid primary record of the young nation's reach across the continent.

Omaha, NE

This 1953 state historical marker commemorates the Mormon Pioneer Trail, the route along which thousands of Latter-day Saints fled persecution in Nauvoo, Illinois, and trekked across Iowa and Nebraska toward the Rocky Mountains in the late 1840s. Driven from their homes by mob violence, they crossed the Mississippi and pressed west in one of the great organized migrations in American history. The bridge here honors that pioneer road across the Missouri River.