They explored the Louisiana Territory.
Lewis and Clark were sent to the Louisiana Territory to explore new land.
to explore the Louisiana Territory
"When Lewis and Clark set out" is the adverb clause in the sentence. It provides information about the timing or circumstances of the action "they were supposed to explore the Louisiana Territory."
Meriwether Lewis and William Clark, and Zebulon Pike
They explored the Louisiana Territory
Merriweather Lewis and William clark
to explore the vast Louisiana Territory
to explore and find out what was in the Louisiana territory
President Jefferson needed Lewis and Clark to map the Louisiana Territory and to explore it.
Lewis and Clark
Lewis and Clark explored parts of what is now Nevada in 1805. They were hunted at this time by people representing Spain because Nevada was in Spanish Territory. The Spaniards thought Lewis and Clark were encroaching on their land.