Niobrara River

at 9 A. M we passed the enterance of River Quiequur which had the Same appearance it had when we passed up water rapid and of a milky white Colour
William Clark

Large plains river with a large flood plain

Photo created by Ammodramus who has released it to the public domain.

Richweed (Pilea pumila)

I walked on the N. E. main Shore found the bottom rich and thickly covered with Peavine rich weed grass interwoven in Such a manner with grape vines that I could not get through and was obliged to assend a high plains the passing through which I also found tiresom. the grass was nearly as high as my head and the musquitors excessively bad.
William Clark

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Green, leafy bush

Photo by Bill Summers of the U.S. Department of Agriculture.

Least Terns (Sternula antillarum)

after we all Came together we again proceeded on down to a large Sand bar imediately opposit to the place were we met the Yanktons in Council at the Calumet Bluffs and which place we left on the 1t of Septr. 1804. I observed our old flag Staff or pole Standing as we left it.
William Clark

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Two birds on the sand

Photo by Robert Etzel, U.S. Army Corps of Engineers.