In this book, students learn about Meriwether Lewis and William Clark's famous Voyage of Discovery (1804-06)--a voyage to find a water route to the Pacific Ocean--through the intriguing story of Fort Clatsop. Students will love walking in the footsteps of the famous explorers while learning about saltmaking on the Pacific coast, about Sacagawea's trip to see the beached whale, and about the explorers' preparations for their return trip home.