John Fremont's ability to draw accurate maps was a talent. The map of the Great Basin was what "changed the entire picture of the West". His maps after 3 expeditions were used by thousands of people moving West.
John C. FrΓ©mont's detailed maps and reports in the mid-1800s significantly altered people's perceptions of the West by portraying it as a land of opportunity and rich resources. His work encouraged settlement and supported the U.S. government's claims under the doctrine of Manifest Destiny. FrΓ©mont's explorations not only informed individuals about the West but also shaped national expansion policies.
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