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On this day in Lewis & Clark history...

Several Mandan women and a few men dressed as women come to Fort Mandan with corn, beans, and moccasins. They trade with the men for old buttons, glass beads, and awls. Clark describes the horns of the Rocky Mountain sheep.

From the journals...

a great nomber of the natives came to the fort with corn beans and moccasons to trade. they take any trifling thing in exchange viz. old Shirts buttons knives awls &c &c.

Joseph Whitehouse

Linen vest, needles, fish hooks, and buttons

linen cloth, fish hooks, needles, and buttons

we precured two horns of the animale the french Call the rock mountain Sheep    those horns are not of the largest kind— The mandans Indians Call this Sheep Ar-Sar-ta    it is about the Size of a large Deer, or Small Elk, its Horns Come out and wind around the head like the horn of a Ram

William Clark

Rocky Mountain bighorn sheep, Ovis canadensis

Rocky Mountain Bighorn Sheep horn and skull

This ram's horn is displayed at the Discover Lewis & Clark Interpretive Center, Washburn, North Dakota.