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September 11, 2026Short & citedBlog
Civic Viewpoint.
A quiet encyclopedia with a personal desk
Kept by Bryan McAllister — short guides, clear facts, and the Canadian angle when it matters.
People File • Adventurer

Aron Ralston

Aron Lee Ralston is an American mountaineer, mechanical engineer, outdoorsman, and motivational speaker.

Updated September 11, 20261 min readCited sources

Aron Ralston is an American mountaineer who survived a 2003 canyoneering accident by amputating his own arm. His story inspired the book *Between a Rock and a Hard Place* and the film *127 Hours*.

What it is

Aron Ralston is a mechanical engineer, outdoorsman, and motivational speaker. He became widely known after a solo canyoneering trip in Utah's Blue John Canyon in April 2003, where a boulder trapped his right arm against the canyon wall.

Why it matters

Ralston's survival story is a remarkable example of human endurance. He spent five days trapped before amputating part of his arm with a pocketknife to free himself. The event led to a bestselling autobiography and the Oscar-nominated film *127 Hours*, making it a globally recognized tale of survival.

Key details

After amputating his arm, Ralston rappelled a cliff and hiked out of the canyon to safety. He later continued outdoor adventures and became a motivational speaker. He now lives in Boulder, Colorado, and advocates for wilderness safety.

In short

  • Trapped in Blue John Canyon for five days in 2003.
  • Amputated his own right arm with a pocketknife to escape.
  • His story became the book *Between a Rock and a Hard Place* and the film *127 Hours*.
  • Now a motivational speaker and outdoor advocate.
Canadian angle

Ralston’s story is widely known in Canada through the film *127 Hours*, which was distributed and discussed internationally, and through his continued profile as a motivational speaker and outdoor figure.

Quick questions

Who is Aron Ralston?
Aron Ralston is an American mountaineer, mechanical engineer, outdoorsman, and motivational speaker best known for surviving a 2003 canyoneering accident in Utah.
What happened to Aron Ralston?
In 2003, a boulder trapped his right arm in Blue John Canyon, Utah, and he later amputated part of the arm to escape.
How did Aron Ralston survive?
He used a pocketknife to amputate part of his own right arm, then rappelled and hiked out of the canyon until he was rescued.

Sources

  1. Wikipedia — https://en.wikipedia.org/wiki/Aron_Ralston
    Supports: Birth date, nationality, occupations, 2003 accident, Blue John Canyon location, post-escape actions.
  2. Wikipedia (Simple English) — https://simple.wikipedia.org/wiki/Aron_Ralston
    Supports: Accident summary, place trapped, autobiography and film references, later life details.
  3. IMDb — https://www.imdb.com/name/nm1737008/
    Supports: Trap duration, accident details, and film credits related to 127 Hours.
  4. DELTS — https://www.delts.org/aron-ralston
    Supports: Survival details, post-rescue activities, current pursuits and residence-related information.
  5. LinkedIn — https://www.linkedin.com/in/aronralston1
    Supports: Current professional description, location, speaking and advocacy claims.
  6. Carnegie Mellon University Magazine — https://www.cmu.edu/magazine/03fall/aralston.html
    Supports: Accident account and early post-rescue plans/return to climbing.