Westward Expansion

Coyotes

Wild Horses: The Consequences

Animals of the Northern Great

Bears on the Lewis and Clark E

Environmental Impacts

Native Plants

National Parks

Family Retraces the Expedition

Pronghorn Revival: Bringing Ba

Condors Reach New Milestone

The Horticultural Potential of

Plants | Discovering Lewis & C

Places under Protection

Animals of the West

How Native Americans changed

Native Nations

Home | Discovering Lewis & Cla

Maps

Lewis and Clark . Natives

Salvation Fish

Home | Journals of the Lewis a

Naturalists

Lewis & Clark Expedition - Sci

American Indians--Lewis and Cl

Native Americans: Histories an

Native American Culture

Westward Expansion

Resources to help research the impact of Lewis and Clark's exploration of the Louisiana Purchase and Westward Expansion on the various ecosystems of the American West.

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