it is easier to travel on water.
Rivers.
Since there weren't many roads in the 1800s and most land that Lewis and Clark explored was unknown, rivers were one of the only ways they could travel. The rivers were how fur trappers traveled.
The Journey--Lewis and Clark Expedition: A National Register of Historic Places Travel Itinerary. In December 1803, William Clark established "Camp River Dubois" on the Wood River at the confluence of the Mississippi and Missouri rivers, north of St. Louis, Missouri, and across the river in Illinois.
The Missouri River and the Mississippi River met at the starting point of the Lewis and Clark expedition. Lewis and Clark began their journey near present-day St. Louis, where these two rivers converge.
It is a lot easier to travel this way, rather than on foot or horse, and less tiring. They also knew that the rivers would flow towards an ocean which was one of the goals of their journey, they knew it would lead them in the right direction.
Mississippi river, colorado rivers
Lewis and Clark journeyed to the pacific ocean
Lewis and Clark found the Missouri River.
she traveled with Lewis and clark
Foods that would rot over time were not allowed on Lewis and Clark's Journey.
Lewis and Clark's full names are Meriwether Lewis and William Clark. Their famous journey lasted from 1804 until the fall of 1806.
Clark.