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Our chapters provide education, outreach and trail stewardship across the country.
We Proceeded On is the only scholarly journal dedicated to the Lewis and Clark Expedition.
The William P. Sherman Library and Archives is the premier facility dedicated to the Lewis and Clark Expedition.
We are dedicated to preserving and protecting the Lewis and Clark National Historic Trail.
(888)-701-3434 - 4201 Giant Springs Rd Great Falls, MT 59405 - PO Box 3434 Great Falls, MT 59403
