Where Paths First Crossed
Photograph by Chris Johns
Icy shores of the Missouri River evoke one winter two centuries ago that altered U.S. history. In late 1804, on the banks of the Missouri in what is now North Dakota, Lewis and Clark's Corps of Discovery built their winter headquarters and named it Fort Mandan. It was there that the two explorers first met Sacagawea, the teenage Shoshone who would serve as an interpreter to ease the explorers' way west.