Lewis & Clark Trust

Research Projects

The Hernando de Soto Bridge arching over the Mississippi at Memphis, seen from the river
Research

Mississippi River 360°

Cairo, Illinois, to Memphis and the Arkansas River Completed

On September 8, 2026, 243 miles of the Mississippi from the Cairo confluence to Memphis, paid for by the Trust's challenge fund and its anonymous…

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The Irvin S. Cobb Bridge spanning the Ohio River at Paducah, Kentucky, seen from the water
Research

The Ohio River in 360°

Pittsburgh, Pennsylvania, to Cairo, Illinois Completed

The Ohio, the river Lewis came down in 1803, is on the record in 360° from Pittsburgh to its confluence with the Mississippi at Cairo.…

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Katy Trail trailhead at Rocheport, Missouri
Research

Katy Trail 360°

Rocheport to North Jefferson, Missouri Active

35.7 miles of the Katy Trail, Rocheport to North Jefferson, ridden in 360° on July 3, 2026 and live at bikethekaty.com. The rest of the…

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Map of the homelands of tribal nations along the Lewis and Clark route, from lewisandclarkresearch.org
Research

Lewis and Clark Research Library

Online at lewisandclarkresearch.org Ongoing

The Trust's research library, live on its own domain since May 12, 2026: 5,788 catalogued items, 3,124 journal entries and a map of 44 tribal…

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The Jefferson River near Three Forks Junction, Montana, seen from the water on a sunny morning
Research

Terrain360 Trail Mapping Partnership

16 States along the Lewis & Clark National Historic Trail Active

Since 2021: 411 trails, 218,787 panoramas and 4,856 miles of the Lewis and Clark rivers and trails in 360°, as of September 2026, with the…

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