Yellowstone River

About

Yellowstone River, Wyoming Montana — 1872 Yellowstone NP, 1807-1808 Manuel Lisa, 2011 Exxon 2010s Stillwater. The Yellowstone valley was the heart of Crow (Apsáalooke) territory long before American traders arrived. The Crow called themselves Apsáalooke — "Children of the Large-Beaked Bird" — and the valley was their homeland for centuries, providing bison hunting and a natural corridor through the northern Rockies. The name itself points to the river of yellow stones that ran through the country.

The river's commercial history opened early. In 1807 and 1808, Manuel Lisa established the first American trading post near the Yellowstone's mouth, the spark that ignited significant trade across the region and drew trappers and traders into the upper Missouri country. Decades later, science caught up with the country the trappers had crossed. The 1871 Hayden Geological Survey of the Yellowstone River basin, led by Ferdinand Vandeveer Hayden, produced the first detailed maps and photographs of the river, its tributaries, and the geyser basins. That survey became the scientific foundation for the 1872 Yellowstone National Park Protection Act, signed by President Ulysses S. Grant on March 1, 1872 — the world's first national park.

As settlement followed the rails, the watershed became a working landscape. Extensive logging ran from the 1880s through the 1920s to supply the Miles City, Billings, and Glendive sawmills and the 1887–1910 Northern Pacific Railway expansion. The largest operators were the 1895–1910 Yellowstone Saw Mill Company, the 1902–1924 Tongue River Logging Company, and the 1906–1920 Rosebud Timber Company. The 1910 completion of the Northern Pacific, the 1920 exhaustion of the high-quality ponderosa pine stands, and the 1934 creation of the Custer National Forest together ended the era of large-scale commercial logging in the valley. In the same decades, the 1906–1910 Reclamation Service era built the Huntley and Yellowstone irrigation projects, and USGS and Reclamation Service studies at Glendive, Miles City, and Billings established the river's streamflow record.

The modern river remains a working watershed carrying modern hazards. On July 1, 2011, the ExxonMobil Silvertip Pipeline ruptured beneath the river near Laurel, Montana, releasing about 1,500 barrels of crude oil into its current. Just over a decade later, in June 2022, the Yellowstone experienced catastrophic flooding — a 500-year event — that destroyed roads and bridges in Yellowstone National Park and Paradise Valley, reshaped the river channel in many areas, and temporarily closed the park. Recovery efforts continue to reshape management of the river corridor.

Today the Yellowstone is a Montana Blue-Ribbon Trout Stream, protected in part by Trout Unlimited conservation work, including Yellowstone basin cutthroat trout recovery and Mill Creek restoration. Paddlers most often run Paradise Valley from Gardiner to Livingston, a Class I–III float; below that, Livingston to Big Timber offers a Class I–II wide-valley float, and Big Timber to Columbus eases into a Class I prairie-river transition. The river still supports the Livingston, Billings, and Miles City economies it has anchored for more than a century.