

PART A: Which of the following best identifies the central idea of this article?
How does the author describe the relationship between the American explorers and the Native Americans they met?
Cite evidence from the text in your response.
PART B: Which phrase from the text best supports the answer to Part A?
How does the following phrase contribute to the development of a main idea in the passage: "200 years ago there were no maps of that part of the United States" (Paragraph 1)?
What is the author's main purpose in writing the article?