Sevier River Basin Floods 1852-1967

This chronology of Sevier River Basin floods extends from 1852 to 1967. Most common and destructive are dry mantle floods, which flow as a muddy mortar-like substance containing 40 to 55 percent water. Hundreds of tons of protective topsoil are removed from watershed lands, debris and boulders are picked up as the flow travels down steep stream channel gradients, and then the flood is debouched into communities and on to productive cropland