They were the OTTO'S and the KANSA native americans
The group lead by Lewis and Clark was called the Company of Exploration.
Corps of Discovery
The group of explorers in the Lewis and Clark expedition were known as the Corps of Discovery. Led by Meriwether Lewis and William Clark, they set out to explore and map the newly acquired Louisiana Territory in the early 1800s.
Pike was the leader of one group that was sent out to explore the west. Lewis and Clark were the leader of the other group. In the end they return but Pike was not and much as a hero like Lewis and Clark. They just wanted to please Jefferson.
European Explorers
On July 27 - The Blackfeet Indians tried to steal Lewis's group's rifles. A fight broke out and two Indians were killed. This is the only hostile encounter with an Indian tribe.
shoshon
The group was known as the Corps of Discovery, led by Meriwether Lewis and William Clark, tasked by President Thomas Jefferson to explore the newly acquired Louisiana Territory in the early 1800s.
The group of men who went on the journey with Lewis and Clark were known as the Corps of Discovery. They were a diverse team of volunteers, including soldiers, interpreters, and hunters, who were chosen by Lewis and Clark to explore the newly acquired Louisiana Purchase and find a water route to the Pacific Ocean.
the nez perce
Louis and Clark took the same route and were one group not separate groups.
The group of explorers who accompanied Lewis and Clark on their expedition was called the Corps of Discovery. It included soldiers, interpreters, and guides who helped the expedition navigate the unknown territory.