PART IV
Reading edition
1780-1793
FIRST ACROSS THE ROCKIES—HOW MACKENZIE CROSSED THE NORTHERN ROCKIES AND LEWIS AND CLARK WERE FIRST TO CROSS FROM MISSOURI TO COLUMBIA
Reading edition
FIRST ACROSS THE ROCKIES—HOW MACKENZIE CROSSED THE NORTHERN ROCKIES AND LEWIS AND CLARK WERE FIRST TO CROSS FROM MISSOURI TO COLUMBIA