Wanapum People

about 200 men Singing and beeting on their drums Stick and keeping time to the musik,

they formed a half circle around us and Sung for Some time,
William Clark

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This dance was held at the Pendleton Round Up of 2011. To see 200 men singing and dancing in period dress, attend a pow wow near you!

Historic photo of Indians dancing at a rodeo

Photo by Burrell courtesy of Nez Perce National Historical Park, NEPE 1605.

Confluence of Snake and Columbia Rivers

Towards evening we arrived at a large fork that came into this River from a Northerly direction & was much large than the fork which we descended... The country round where the forks of these two Rivers lay was level & smooth barren plains...
-Joseph Whitehouse-

Photo date: October 11, 2008
Some modern artifacts have been obscured.

Confluence of Snake and Columbia Rivers

Columbia River

after Smokeing with the Indians who had collected to view us we formed a camp at the point near which place I Saw a fiew pieces of Drift wood
-William Clark-

Taken at Sacajawea State Park, where you can visit the Sacajawea Interpretive Center or attend the annual Heritage Days.

Photo date: October 11, 2008
Some modern artifacts have been obscured.

Large, drift logs with large rive in the background

Panhandle Prickly Pear (Opuntia polycantha)

Great quantities of a kind of prickley pares, much worst than any I have before Seen of a tapering form and attach themselves by bunches.
-William Clark-

Learn more: Wikipedia | Wikimedia Commons

Photo date: July 31, 2010 at the Ordway site on the Snake River. These are common along the Snake River, but I can't confirm this is the same type of prickly pear described by Clark.

a very prickly plant

Colville Scalp Dance

after we had our camp fixed and fires made, a Chief came from their Camp which was about ¼ of a mile up the Columbia river at the head of about 200 men Singing and beeting on their drums Stick and keeping time to the musik, they formed a half circle around us and Sung for Some time.
-William Clark-

Historical painting of Indians dancing

Painting by Paul Kane based on sketches made at the village of Takumaskt, Kettle Falls in 1847 (Interior Salish).