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the claim
A massive catastrophic flood formed the Grand Canyon
the verdict
REFUTED
the evidence says no
refutedsupported
the weight of evidence
1 source for · 3 against
AS REPORTEDno primary record reached; this is what the reporting says

Scientific evidence overwhelmingly demonstrates that the Grand Canyon was carved over millions of years by the Colorado River, not formed by a single catastrophic flood.

Evidence for · 1
Institute for Creation Research: Mountain of fire : the daring rescue from Mount St. Helens
1997 · cited by 0
Mentions the creationist claim that a flood formed the canyon, but within fictional/theological context.
Evidence against · 3
Wikipedia: Grand Canyon
cited by 0
Reference article covering this claim directly
See more details
How claims like this are judged

Judged against fact-checker rulings and reference works: claims of this kind are settled by the fact-checking record, not journal abstracts.

More against · 2
W.W. Norton: The rocks don't lie : a geologist investigates Noah's flood
2012 · cited by 0
Examines and refutes the theory that Noah's flood formed the Grand Canyon.
Distributed by PGW/Perseus: Bretz's flood : the remarkable story of a rebel geologist and the world's greatest flood
2008 · cited by 0
Discusses Bretz's flood regarding other gorges, contrasting with standard Grand Canyon formation views.
Everything we examined (12) — 10 independent sources
This check searched the claim as stated. It did not run a separate search for evidence against it.
  1. Wikipedia: Grand Canyonreferencesame source L1refutes
  2. Wikipedia: Floodreferencesame source L1no side takennot shown: read and judged not to bear on this claim
  3. Book: The Counter-Creationism Handbookreferencerefutesnot shown: a book whose author and subject did not establish authority here
  4. Book: Large Riversreferenceno side takennot shown: read and judged not to bear on this claim
  5. Master Books: Grand Canyon : a different viewreferenceno side takennot shown: read and judged not to bear on this claim
  6. Institute for Creation Research: Mountain of fire : the daring rescue from Mount St. Helensreferencesupports
  7. W.W. Norton: The rocks don't lie : a geologist investigates Noah's floodreferencerefutes
  8. Little, Brown and Co.: The secret knowledge of water : discovering the essence of the American desertreferenceno side takennot shown: read and judged not to bear on this claim
  9. Sasquatch Books: The secret knowledge of water : discovering the essence of the American desertreferencesame source L8no side takennot shown: read and judged not to bear on this claim
  10. Sasquatch Books: The secret knowledge of water : discovering the essence of the American desertreferencesame source L8no side takennot shown: read and judged not to bear on this claim
  11. Distributed by PGW/Perseus: Bretz's flood : the remarkable story of a rebel geologist and the world's greatest floodreferencerefutes
  12. Interdisciplinary Biblical Research Institute: God's time-records in ancient sediments : evidences of long time spans in Earth's historyreferenceno side takennot shown: read and judged not to bear on this claim
The paper trail · every fact has a biography
first checked06 Aug 2026
judged → REFUTED · 306 Aug 2026
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