Lewis and Clark State Park

Meriwether Lewis and William Clark’s historical journey across North America was the first time a group of explorers catalogued and studied the topography, animals, and nature of the newly purchased Louisiana Territory. Travelling primarily by a wooden keelboat through the ...

National Historic Landmark - Sgt. Floyd Monument

After the Louisiana Purchase expanded American territory and called for western scientific exploration, Charles Floyd joined the Corps of Discovery in the launching of its expedition party. Captains Meriwether Lewis and William Clark gave Floyd the rank of Sergeant and ...

Mud Volcano and Dragon's Mouth Spring

Upon their journey for the gold mines along the Salmon River, the Washburn Expedition discovered Dragon’s Mouth in 1870. Dragon’s Mouth underwent several name changes since its discovery and christening as “Cave Spring” by Warren Gillette, a member of the ...

Little Big Horn Battlefield National Monument

On June 26, 1876, troopers of the U.S. 7th Calvary Regiment led by Lieutenant Colonel George Armstrong Custer engaged in fierce fighting with Indians of the Teton Sioux and Northern Cheyenne tribes near the Little Big Horn River in Montana. ...

Midway Geyser and Grand Prismatic Spring

The Midway Geyser Basin is located in Yellowstone National Park, and is part of the largest collection of geysers in the world. Midway features the Excelsior Geyser, which discharges more than 4,000 gallons of water per minute, as well as ...

Grand River National Grasslands

Known for its scenic vistas and unique habitat, the Grand River National Grasslands are a distinctive part of the American landscape, and even the iconic explorers Lewis and Clark expressed awe when they beheld the Grasslands for the first time. ...

Fort Pierre and Farm Island

The Fort Pierre plain is located on the western side of the Missouri River in the city of Pierre, South Dakota. Native American tribes and fur traders appreciated the area’s level terrain that provided easy access to the Missouri River, ...

Beaverhead Rock State Park

Located northeast of Dillon, Montana, Beaverhead Rock is the notable site that inspired the name of Beaverhead Rock State Park and serves as the park’s primary attraction. The Shoshone Indians originally named the landmark Beaverhead Rock due to the resemblance ...

Golden Gate

The Golden Gate of Yellowstone occupies an area in northwestern Yellowstone Park in Wyoming, where a steep, narrow road passes through the mountainside. The Grand Loop Road hugs the walls along Golden Gate Canyon above Glen Creek and forms a ...

Mammoth District

The Mammoth District of Yellowstone contains a number of constantly shifting and changing hot springs. The springs are formed by hot water rising through limestone, resulting in travertine deposits.

When John Colter, a member of Lewis and Clark’s Corps of ...