| Raynolds Expedition noting | |||||
|---|---|---|---|---|---|
| Part of the exploration of North America | |||||
| |||||
| Belligerents | |||||
 United States | |||||
| Commanders and leaders | |||||
 William F. Raynolds Henry E. Maynadier | |||||
| Strength | |||||
|
33 soldiers
| |||||
The Raynolds Expedition was a United States Army exploring and mapping expedition intended to map the unexplored territory between Fort Pierre, Dakota Territory and the headwaters of the Yellowstone River. The expedition was led by topographical engineer Captain William F. Raynolds.