Masters of Stone IV - Pure Force
- Mwaka: 1997
- Nchi: United States of America
- Aina: Documentary, Adventure
- Studio: Eric Perlman Productions
- Neno kuu: sports, rocky mountains, climbing, bouldering, mountaineering, rock climbing, escalade, sierra nevada range, goat climber
- Mkurugenzi: Eric Perlman
- Tuma: Dan Osman, Ron Kauk, John Bachar, Tommy Caldwell, Alexander Huber, Chris Sharma