Masters of Stone IV - Pure Force
- Leto: 1997
- Država: United States of America
- Žanr: Dokumentarni, Avantura
- Studio: Eric Perlman Productions
- Ključna beseda: sports, rocky mountains, climbing, bouldering, mountaineering, rock climbing, escalade, sierra nevada range, goat climber
- Direktor: Eric Perlman
- Igralska zasedba: Dan Osman, Ron Kauk, John Bachar, Tommy Caldwell, Alexander Huber, Chris Sharma