Cast
Two journalists traverse the Grand Canyon by foot, hoping this 750-mile walk will help them better understand one of America's most revered landscapes and the threats poised to alter it forever.
8 August 2019
22 April 2018
14 April 2001
26 November 2021
20 November 2019
1 October 2019
18 November 1997
23 September 1994
19 July 2023
18 March 2021
24 July 2019
28 September 2019
22 August 2020
16 November 2018
5 February 2020
30 May 2019
15 February 1985
18 December 2014
17 June 2015
21 January 2015
9 February 2019