"Petrified forests" are common tourist attractions, invariably used to promote uniformitarian thinking. One well-known example is in Theodore Roosevelt National Park near Medora, North Dakota, U.S.A. The petrified wood is contained in various strata of the "Paleogene" Fort Union Group in the Williston Basin, but in the park primarily in the lower Sentinel Butte Formation. This formation exhibits much evidence against uniformitarian hypotheses but which fits well with the Genesis Flood. The site shows laterally extensive and vertically limited horizons containing fossilized tree trunks, divorced from fine roots and branches, with no discernible rooting medium such as paleosols, and closely associated with bentonite, iron oxide, and coal. The stratigraphy and sedimentology of the area bespeak continuous, rapid deposition and powerful currents. The uniformitarian scientists also have the problem of how silicification occurs prior to the more rapid normal decay process typical of the supposed swamps which are the interpreted depositional environment for the Fort Union. Burial of vertical trees sinking from log mats and rapid silicification associated with volcanic activity during the Bibilical Flood (responsible for the bentonites) is a more plausible explanation