The excavation of the Orange-Fish Tunnel
22:22
The Story of the Gamtoos Tunnels
20:02
Construction of Erfenis Dam
3:43
My poor attempt at climbing Spire Rock. Spanaway, WA.
19:45
ISOLATED in the Mountains: Gamkaskloof (Die Hel) via Swartberg Pass | "Best of the West", pt.1
24:00
The Great River (Orange-Senqu)
16:58
Aluminum Mining: Inside the World's Largest Aluminum Deposits: Mining & Manufacturing
51:53
The history of tunnelling in South Africa - Tony Boniface
14:55