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Ken Burns as Narrator (Voice) |
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Lee Stetson as John Muir (Voice) |
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Kevin Conway as Theodore Roosevelt (Voice) |
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Gene Jones as Charlie Leidig (Voice) |
| Writing | Dayton Duncan | Writer |
| Directing | Ken Burns | Director |
| Production | Ken Burns | Executive Producer |
| Production | Dayton Duncan | Producer |
| Editing | Craig Mellish | Editor |
| Production | Julie A. Dunfey | Co-Producer |
| Production | Aileen silverstone | Associate Producer |
| Crew | Buddy Squires | Cinematography |
| Crew | Lincoln Else | Cinematography |
| Crew | Ken Burns | Cinematography |
| Sound | Craig Mellish | Sound Editor |
