Late Holocene buried soils were described and sampled at two locations in Oklahoma. These floodplain locations contain typical examples of central Oklahoma alluvial soil and sediment stratigraphy. The buried soils mark periods of landscape stability in an aggrading stream environment and contain important information for the interpretation of archaeological materials, flood history, past climates, and past vegetation. These buried soils formed beneath prairie vegetation, and during relatively short (tens of years) to long periods (hundreds of years) of time. Buried soils contain pachic A horizons, mollic epipedons, and are sometimes welded into cumulic and fluventic sequences. Partice-size distribution, soil organic matter, soil morphology, and plant phytoliths in the soil can be used to determine soil forming processes in buried landscapes.