PART FOUR
FIRST ACROSS THE ROCKIES—HOW MACKENZIE CROSSED THE NORTHERN ROCKIES AND LEWIS AND CLARK WERE FIRST TO CROSS FROM MISSOURI TO COLUMBIA
[ CHAPTER X
FIRST ACROSS THE ROCKIES ]
How Mackenzie found the Great River named after him and then pushed across the Mountains to the Pacific, forever settling the Question of a Northwest Passage
[ CHAPTER XI
LEWIS AND CLARK ]
The First White Men to ascend the Missouri to its Sources and descend the Columbia to the Pacific—Exciting Adventures on the Cañons of the Missouri, the Discovery of the Great Falls and the Yellowstone—Lewis' Escape from Hostiles