Grand Falls, Arizona, presents a beautiful setting in which to investigate the uniformitarian interpretations of near-consistent processes occurring over millions of years of time. The Little Colorado River, which incises the Kaibab and Moenkopi formations, was diverted from its course by a basaltic lava flow from the Merriam Crater, forming the falls. We examined the geomorphologic and stratigraphic setting, and postulate an historical model. Evidence in support of uniformitarian time was not found. Rather, it appears that a subaerial eruption of lava flowed across the top of the Kaibab and Moenkopi strata within the last few thousand years. The Kaibab carbonates and overlying Moenkopi sandstones reflect Flood deposition, while the basaltic lava flow was emplaced later, during the post-Flood Ice Age Timeframe. The geomorphic and stratigraphic setting of Grand Falls is consistent with the short time frames predicted by the young-Earth Flood framework.