Who Shoshone woman who joined the Lewis and Clark expedition as a guide and interpreter?

The Shoshone woman who joined the Lewis and Clark expedition as a guide and interpreter was Sacagawea. She played a crucial role in aiding the expedition by providing valuable knowledge of the land and facilitating communication with Native American tribes. Sacagawea's contributions were instrumental in the success of the journey, and her presence helped to symbolize peace and cooperation between the explorers and indigenous peoples.