... Gray of Boston had already discovered the mouth of the Columbia. In order to claim to the Northwest Territory, Jefferson asked Lewis and Clarke to explore the regions of the Columbia River. In 1805, Lewis and Clarke Expedition decided to move from the territory of Nez Perce Indians to the place down the Columbia River after the Rocky Mountains. The Nez Perce Indians had once told ... apprehension than is common." (Chinook) Then that was the how the Chinook people started to contact the Europeans. The expedition had around thirty-one men in all. The course to the Rocky Mountains was up t...

• Word Count: 3409
• Approx Pages: 14
• Has Bibliography
• Grade Level: High School