There are 2 kits on this topic:
Trials of the Trail - A series of double sided vinyl posters with stands. One side is a map of trail progress, the other side includes information about the stop and difficulties faced there. There is also a teaching guide for each station.
Trunk of Discovery - Books and materials to identify plants and animals in the areas Lewis and Clark passed through. A way for students to be explorers in the Lewis and Clark style.