Check out this film from 1922 that documents the first ever winter ascent of Mt. Rainier by Jean and Jacques Landry, Jacques Bergues and newsreel cameraman Charles Perryman. It's also the first motion picture ever taken on the summit of Mount Rainier, and is the oldest known climbing or skiing film in the State of Washington.
The film come courtesy of The Mountaineers. In 2003, Charles Perryman's grandson, Steve Turner, contacted The Mountaineers about the film after reading about Perryman's climb in the Alpenglow Ski Mountaineering History Project. This led to an eight-year effort by Skoog to acquire the newsreel films. The project was completed in October 2011: