As it carved into the depths of the earth's crust thousands of years ago, the mighty Missouri River threw a rock onto its banks. Over the next several centuries, the rock would witness unimaginable changes in the land and its people. Alice Colton's Riversong follows this rock's travels through time and across distance from Three Forks to the Fred Robinson Bridge along the Missouri River in Montana. The first people to pick up the rock are early nomads. Later, it journeys with Sacajawea as she assists Lewis and Clark's expedition. The rock witnesses fur trades, the building of Fort Benton, and the hardships of the Nez Perce tribe. It sees the arrival of homesteaders and the decline of our precious wildlife. Colton bases the events the rock witnesses on actual historical incidents uncovered during her years of research. Her homesteader narratives come from authentic recorded accounts, lending them unaffected realism. Complete with historical photographs and a custom map, Riversong provides a unique perspective of the fluid motion of time and the often tumultuous evolution of cultures along the banks of the Missouri River.