The author traces how Lewis and Clark's epic journey of 1804–06 and their charting of the American Northwest dramatically revised generally held concepts of the area's geography. With 45 maps. "Splendidly researched and highly readable" — Donald Jackson, editor of the Letters of the Lewis and Clark Expedition.
John Logan Allen Book order
This author explores the intricate relationships between people and their environments. His work delves deeply into the influence of geographical and political forces on human societies. Through his writings, he offers a perceptive view of the world and our place within it. His analyses are consistently informed and thought-provoking.

- 1991