A new study of Idaho’s Box Canyon suggests that the canyon was formed rapidly by “a megaflood,” not slowly as previously thought.* A box canyon is generally a narrow, flat-bottomed canyon with steep walls, closed off at one end. The standard story is that seeping groundwater slowly erodes the canyon away over a long time.
A research team studying the canyon, however, determined that slow-moving water could not have transported the large boulders found downstream, so they have concluded that a “megaflood” (from nearby lakes) carved the canyon in a relatively short period.
Secular scientists are crediting more and more geological marvels to the work of catastrophes, such as megafloods.
*NewScientistSpace, “Earth Canyon Hints at Ancient Megafloods on Mars,” May 22, 2008.