No, they stared the trip together
By the end of the expedition, Lewis and Clark found and categorized 122 new animals and 90000000000plants, mapped the geography, and achieved friendlier relations with the natives. However, they did not find an all water route to the Pacific Ocean. You Gay a'fList of plants discovered: Whatplant life did Lewis and Clark find on their expeditionList of animals discovered: Whatanimal life did Lewis and Clark encounter during their expedition
The Montana river, the Missouri River, Rocky Mountains
No they were not, they were only friends. If you happen to encounter the name "Meriwether Lewis Clark" this is the name of one of William Clark's sons. William Clark and Merwether Lewis had a deep friendship and it's no wonder that William Clark named one of his sons after his dear friend.
they encountered the Missouri Indians on August 3rd 1804.
Lewis and Clark