Talk:Rapid erosion on Mt. St. Helens shows Grand Canyon could form suddenly (Talk.Origins)

Several links seem to be broken. Also, does the Colorado river really need to flow upward? And does it matter? Just double checking cuz I don't know much about it :S. Shinydarkrai94 08:58, 15 February 2011 (PST)

Engineers' Canyon Claim

After we've repeated the Engineers' Canyon claim that we've heard from Steve Austin, we've since posted a correction about it, at rsr.org/engineers-canyon[1]:

• RSR Retracts Claim re: Engineer's Canyon: Bob Enyart, host of Real Science Radio, retracts the claim he made in 2012 regarding the formation of Engineer's Canyon in the state of Washington. RSR contacted a scientist who has been teaching graduate courses in remote (satellite, etc.) sensing to review our claimed explanation for Engineer's Canyon. Dr. Ed Holroyd's careful 10-page report, An analysis of the canyons in the Toutle River, states on page 6 regarding "The Engineers Canyon (EC) and 'Little Grand Canyon' (LGC)" that, "These already existed at the time of this image, and so the continued pumping through 1985 did not carve these canyons, but may have enlarged Engineers Canyon." Our original statement, now retracted, stated: "Many people asked to explain the photo on the right might claim that over millions of years that small stream eroded the canyon. In reality, Engineers' Canyon, on the north edge of the Toutle River valley just west of Spirit Lake, eroded it in the early 1980s over a period of two years."

We have links in that statement to the following: - http://kgov.com/files/docs/Engineers-Canyon-WA-Holroyd%20analysis-for-RSR.pdf - http://www.youtube.com/watch?v=9yt1qE5LpVQ&t=44m57s

Thanks Creationwiki for providing a place to discuss this to help vet creationist arguments. Comments, clarifications, challenges, etc., welcomed. BobEnyart (talk) 16:12, 23 November 2015 (EST)