Jefferson River
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The Jefferson River is a tributary of the Missouri River, approximately 83 miles long, in the U.S. state of Montana. The Jefferson River and the Madison River form the official beginning of the Missou
Confluence of Beaverhead and Big Hole Rivers forming the Jefferson near Twin Bridges, Montana
Jefferson River near Parrot Castle, October 2007
Small marine fossils can be found in the Madison Group limestone that makes up the steep, narrow section of the Jefferson River canyon.
Lewis and Clark ascended the Jefferson River in 1805 in their search for a navigable water route to the Pacific.
Three Forks, Montana
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Three Forks is a city in Gallatin County, Montana, United States and is located within the watershed valley system of both the Missouri and Mississippi rivers drainage basins — and is historically con
Jefferson River
…the U.S. state of Montana. The Jefferson River and the Madison River form the official beginning of the Missouri at Missouri Headwaters State Park near Three Forks. It is joined 0.6 miles (1.0 km) downstream (northeast) by the Gallatin. From broad valleys to a narrow canyon, the Jefferson River passes through a…
Three Forks and the Tobacco Root Mountains
Sacajawea Park, a memorial to Sacajawea, in Three Forks
The Bridger Mountains from Three Forks
The Bridger Mountains from Three Forks