What was the role of Sacagawea in the Lewis and Clark expedition?

Sacagawea served as a crucial guide and interpreter during the Lewis and Clark expedition from 1804 to 1806. As a Shoshone woman, she helped the explorers communicate with various Native American tribes and provided valuable knowledge about the terrain, plants, and animals. Her presence, along with her infant son, also symbolized peace, helping to foster friendly relations with Indigenous peoples encountered along the journey. Sacagawea's contributions were vital to the expedition's success and helped ensure their safe passage through unfamiliar territories.