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Lewis & Clark Research Database

The Story

The Story

Chronological expedition narrative

Honor & Respect

Wreath-laying program

Tent of Many Voices

Tribal voices from the trail

Phase 1: Planning

Preparation (1801–1804)

Phase 2: Westward

Journey to the Pacific (1804–1805)

Phase 3: Fort Clatsop

Winter at the Pacific (1805–1806)

Phase 4: Return

Journey home (1806)

Phase 5: Legacy

Post-expedition (1806–1812)
People & Places

Key Figures

Expedition members & associates

Tribal Nations

Nations encountered on the trail

Allied Sites

Museums, archives & partners
Primary Sources

Journal Entries

Original expedition journals

Treaties

Government treaties & agreements

Translations

Translated documents

Documents

Historical documents & letters
Research

Research Papers

Staff & intern research

Research Articles

Scholarly essays & analysis

Artwork

Expedition art & illustrations

Wildlife

Species documented on the trail

Weapons & Equipment

Expedition arms & gear
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Trail Explorer

Trail Explorer

Explore the Lewis & Clark National Historic Trail — 4,300 miles across 16 states

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Routes

Historic Trail Route 62

Bicycle Route 23

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Indigenous History

Tribal Territories 96

Treaty Cessions 151

Tribal Headquarters 90

Indigenous Place Names 470

Natural History

Species Discoveries 137

Mound Sites 143

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Lewis and Clark Research Database

A comprehensive digital archive of treaties, primary documents, artwork, weapons, and scholarly research from the Lewis and Clark Expedition and early American exploration.

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148 Key Figures

373 Trail Segments

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The Lewis and Clark Research Database preserves the historical legacy of the Corps of Discovery — connecting primary sources, artwork, and 360° trail panoramas for researchers, educators, and students.

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