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Posts tagged as “William K. Olsen”

Numerical error

Letter from William K. Olsen

Book Review – May 2007 – Colorado Central Magazine

To the Editor:

In your review of Ancient Denvers, by K.R. Johnson and R.G. Reynolds, in your March edition, it is stated that

“At a rate of 1/70 of an inch a year, a 14,000-foot peak would be reduced to sea level in a million years.”