In summer 1804, Meriwether Lewis and William Clark left St ... continent west of the Mississippi River, which the United States had recently purchased from France, and find a navigable river ...

In the late 1700's, all lands east of the Mississippi River were ... soon met their first bands of Native American tribes: the Otoes, Arikaras, and the Yankton Sioux. Lewis and Clark gave gifts ...

A marker on the Lewis and Clark National Historic Trail ... Britain to America’s destiny beyond the Mississippi River. Jefferson hoped Lewis would find a convenient river highway across the ...

were the first Americans of European descent to cross the Continental Divide, and canoed down the Columbia River system to near what is now Portland, Oregon. The Lewis and Clark Expedition was a ...

This beautiful, towering landmark in central Montana was once a waypoint for Native Americans, Lewis and Clark, and countless ...

but there was a Wood River Creek. Lewis and Clark built their first camp on the east side of the Mississippi River, across from the Missouri River confluence, along a small stream called the River ...

When Lewis and Clark led the Corps of Discovery toward the Pacific from St. Louis, they were venturing into unknown territory ...

The earliest known find in the Northwest was circa 1891, likely on Goat Island on the Columbia River ... plans of the Lewis and Clark Bicentennial Council when it was first getting organized ...

Instead of rain they had sunshine, and instead of “pore elk,” vast bison herds stretched in all directions on both sides of the Yellowstone River ... where Lewis & Clark first encountered ...