North Face of Yosemite's Sentinel Rock, 1997


As of 2019 Frostworks is no longer manufacturing and selling Sentinel Nuts or brokering the sale of Tom Frost photographic prints.

For Sentinel Nuts please contact Larry Arthur at Mountain Tools (831) 620-0911 or

For prints of Tom Frost images or any information relevant to his artwork please contact the North American Climbing History Archives (NACHA) and Steve Grossman at

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