A flash flood has radically altered Havasu Canyon, a side portion of the Grand Canyon. With huge force, “floodwaters carved a new streambed, toppled ash and cottonwood trees, and tossed RV-size boulders aside.”* The flooding also formed a new waterfall. This flood is a reminder of the amazing power of a lot of water over a little time.
The floodwaters of Havasu Creek resulted in the disappearance of Fifty Foot Falls and the creation of a new 30-foot fall, variously called Rock Falls, Emerald Falls, or Unnamed Falls. http://creativecommons.org/licenses/by-sa/3.0/
Creation scientists reason that major canyons like the Grand Canyon were likely formed by a combination of unstable climate and shifting landmasses at the end of and after the worldwide Flood, when the receding waters and heavy rains created huge inland lakes that eventually broke through their earthen dams, causing massive destruction on a scale we no longer see today.
*“2008 Flood Alters Landscape of Famed Grand Canyon Site,” USA Today, August 16, 2009.
http://www.answersingenesis.org/articles/am/v5/n1/flash-geologists