Overview
The John Wesley Powell expedition of 1869 explores the dangerous Colorado River, withstands internal dissension, and finally discovers the Grand Canyon.
Cast
- Brian Keith as William Dunn
- Ben Johnson as George Bradley
- John Beal as Maj. John Wesley Powell
- James Drury as Walter Powell
- R.G. Armstrong as Oramel Howland
- L.Q. Jones as Billy Hawkins
- Dan Sheridan as Jack Sumner
- Stan Jones as Seneca Howland
- David Frankham as Frank Goodman
- Roy Barcroft as Jim Baker