The Johnnie Oolite bed is a significant and regionally widespread carbonate deposit exposed in the Death Valley region of the central Southern Great Basin of California, USA. Most modern oolitic deposits occur in warm waters off tropical and temperate regions such as the Bahama Islands. These are well studied and understood. Oolite deposits found in the geologic record leave some investigators perplexed. In ancient environments, mode of deposition, association with confining sediments, chemistry of sea water and the range, size, and development of ooid formation differ from modern exposures. The Johnnie Oolite bed, averaging 6 feet thick, is a carbonate grainstone composed mostly of ooids, peloids, and lithic fragments was deposited in a high energy environment. Several field exposures of the Johnnie Oolite were observed and investigated. It is stratigraphically bounded above and below by shale deposits. The ooids in the Johnnie Oolite bed are cross bedded and normal to inversely graded. In places, clasts of carbonate mud oriented edgewise are floating within the oolite bedding. In the Nopah Range, the upper middle oolite bed is disrupted and contains rip-up clasts, fluid escape structures, and an erosional bedding plane. These sedimentary structures, their relationship to the enclosing shale beds and the thin section analysis indicate rapid deposition by strong currents in a deeper marine environment, consistent with the earliest stages of the Noachian Flood. Johnnie Oolite grainstone is interpreted as a mass flow with physical properties of strength and competence and super saturated with CaCO3 . The ooids and peloids likely formed in transit after the breakup of the initial Fountains and the deposits of the Kingston Peak Fm and Noonday Dolomite. The Kingston Peak Fm is considered the initial Flood deposit in the study area.