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On this day in Lewis & Clark history...

Big White, a chief from the Lower Mandan village, dines at Fort Mandan and helps Clark sketch a map of the Missouri and Yellowstone rivers. The temperature is recorded at 22° below 0. Lewis records astronomical measurements.

From the journals...

[Big White] gave me a Scetch of the Countrey as far as the high mountains, & on the South Side of the River Rejone, he Says that the river rejone recves 6 Small rivers on the S. Side, & that the Countrey is verry hilley and the greater part Covered with timber, Great numbers of beaver &c.—

William Clark


Historical painting of Sheheke in profile

Painting by C. B. J. Febret de Saint Memin circa 1807.