Fort Osage

Upon the return of Lewis and Clark's Corps of Discovery, President Jefferson selected General William Clark to head the U.S. military forces in the new Louisiana territories and to serve as an agent for U.S. and Native American relations. For ...

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 ...

Rock Fort Campsite

Travelling on the Columbia River between Washington and Oregon, around what is now The Dalles, the Corps of Discovery fought large rapids and rough waters. Clark described the condition of the river as rough with many rocks within the stretch ...

Clark's Lookout

By August 1805, the Corps of Discovery, led by Captains Meriwether Lewis and William Clark, desperately needed horses before winter approached. On August 8, Sacajawea, a Lemhi Shoshone, recognized Beaverhead Rock, a familiar landmark of her tribe. The Corps split ...

Tower Rock

Tower Rock, a state park accessible from Exit 247 at Hardy Creek, Montana, located on I-15 south, was an important landmark to Lewis and Clark on their expedition to the Pacific Ocean, Tower Rock marked the beginning of a new ...

Snake River

Discovered first by the Lewis and Clark Corps of Discovery, The Snake River most likely received its name from the S-shaped motions the Shoshone Indians made to describe the salmon in the river to passing explorers.

The Corp of Discovery ...

Les Shirley Park and Cannon Beach

Les Shirley Park, in the city of Cannon Beach, commemorates the arrival of Lewis and Clark’s expedition, the Corp of Discovery, to the Pacific Coast and marks their furthest southern travel along the coast.

While waiting for a trading vessel ...

Fort Yellowstone

Established by the United States Army on February 27, 1891 as a permanent post, Fort Yellowstone served as an active Army base for 27 years until it transferred to National park Service control.

Congress dispatched the men of Company M, ...

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 ...

Nez Perce National Historical Park

The Nez Perce Historical Park is comprised of thirty-eight sites spread through Washington, Oregon, Idaho, and Montana. Of these sites, three received notoriety as visited by Lewis and Clark. The Corps of Discovery passed through Nez Perce country during the ...