The Sierra Club has maintained a library since its beginnings more than a century ago. The Club's first library was based on a small collection of mountaineering literature that served John Muir and other mountaineers at the turn of the twentieth century.
In San Francisco's devastating 1906 earthquake and fire, this early collection was destroyed, but the library was soon reestablished through an outpouring of donations. From those small beginnings the library has grown to accommodate the evolving needs of Sierra Club members. As the Club grew, so did its library. It now holds a significant conservation and mountaineering collection.
The Sierra Club, William E. Colby Memorial Library's digital collection at California Revealed consists of moving images and texts from the 1930s to 1970s. The collection includes nonfiction films depicting California landmarks, both natural and structural, home movies of Sierra Club outings, and books documenting the annual Sierra Club Base Camp outings in the 1940s and 1950s.