NPR : Hidden Treasures: Lewis and Clark's Map

NPR : Hidden Treasures: Lewis and Clark's Map- In 1806, over a camp fire and food, Nez Perce Indian chiefs made a map for William Clark showing a short and safe journey through the Rockies. Harriet Baskas reports on this recently rediscovered rare Indian map. Part of the Hidden Treasures Radio Project. [5:42 Realaudio broadcast]