For National Geographic

Producers: M. Ford Cochran, Jennifer Kirkpatrick
Artist: Rosalyn Schanzer
Writers: Meriwether Lewis, William Clark, M. Ford Cochran
Text Editor: Peter Winkler
Researcher: Laura Reed
Programmers: Max Glick, Curtis Hovey, Paula Willard
Online Coordinator: Nell Hupman
Quality Assurance: Linda Rinkinen, Paula Willard

Special thanks to National Geographic Books and Rosalyn Schanzer, who wrote and illustrated How We Crossed the West: The Adventures of Lewis and Clark, for making this feature possible. Thanks as well to Stephen and Hugh Ambrose for sharing their time, hospitality, and personal insights.

Quotes in this feature are paraphrased from Lewis’s and Clark’s original expedition journals. Modern state names show on expedition map.

For Electravision

Producer: Kelly Goto
Designer: Valerie Casey, Kelly Goto
Production: Phillip “Cosmo” Daoust
Programmer: Steve Gustafson
Creative Director: Lisa Lopuck
Executive Producer: Sheryl Hampton