How many square kilometers of North America did David Thompson map?
1.9 million square kilometers
2.5 million square kilometers
4.9 million square kilometers
3.5 million square kilometers
Answer
David Thompson mapped an astounding 4.9 million square kilometers of North America. This feat has led to him being described as the "greatest practical land geographer that the world has produced".
Unraveling the Legacy: The David Thompson Explorer Quiz