The following items may be useful and/or of interest relative to aspects of the Lewis and Clark Expedition.
The
Journals of the Lewis and Clark
Expedition (Lincoln: University of Nebraska Press, 1987), Gary
E. Moulton, ed. Available from various sources, including Amazon.
The Journals of the Lewis and Clark Journals An American Epic of Discovery (Lincoln: University of Nebraska Press, 2003), Gary
E. Moulton, ed. The Abridgment of the Definitive Nebraska Edition. Available from various sources, including Amazon.
The following links may be useful and/or of interest
relative to the celestial navigational outside the basics of the Lewis
and Clark Expedition.
Tables for CLEARING the LUNAR DISTANCE including a convenient way to sharpen celestial navigation skills while on land; second, revised edition (Eugene Oregon: Lant-horn Press, 1995, 1997); Bruce (D.) Stark. Available from Celestaire.