500 Buffalow

On September 9, 1804, west of today's Fort Randall Dam in South Dakota, Clark's black servant scored.

Derected my Servent York with me to kill a Buffalow near the boat from a numbr. then Scattered in the plains, I saw at one view near the river at least 500 Buffalow, those animals have been in view all day feeding in the Plains.