We Proceeded On, Vol. 33, No.3, August, 2007. This issue is the official publication of the Lewis and Clark Trail Heritage Foundation, Inc. The articles of major interest in this issue are:
"an excellent guide to subsequenet explorers" (The scientific influence of Lewis and Clark's geological discoveries published in Nicholas Biddle's edition of the journals.)
Searching for Sea Otters (Lewis and Clark understood the importance of sea otters to American trade, but were unable to provide a full and accurate report of their presence on the coast.)
Highways through History: The Modern Rivers of Lewis and Clark (Commerce prompted changes that have altered the rivers significantly.)
37/Softbound/Illustrations/Photographs.