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On this day in Lewis & Clark history...

The Expedition travels six miles up the Missouri River to the mouth of the Big Nemaha River. Clark walks on a long island where he finds a stray Indian horse and numerous grape vines. The hunters are sent up the Big Nemaha.

From the journals...

I joined the party on a large Sand Island imediately opposit the mouth of Ne Ma haw River, at which place they had Camped, this Island is Sand    about half of it Covered with Small Willows of two different Kinds, one Narrow & the other a Broad Leaf.

William Clark

Sandbar Willow, Salix exigua (top) and Peach-leaved willow, Salix amygdaloides

The Sandbar willow leaves are much narrower than the Peach-leaved willow

Sandbar willow photo ©Curtis Clark. Downloaded from Wikimedia and used with permission of the Creative Commons 2.5 License.

Peach-leaved willow photo created by the U.S. Fish and Wildlife Service.