I recently went to the Arch in St Louis and became very interested in the expedition and possibly the events that to Russia and France owning large parts of the continent. Thank you.
Half way through Undaunted Courage which is great so far. I actually bought it a couple months ago at the Fort Clatsop gift shop. It discusses alot of the leadup to the expedition and how it came about. The local history teachers that volunteered there as re-enactors recommended it