A survey at Rheinmunster-Schwarzach was carried out during extended research of the medieval monastic complexes of Baden-Wurttenmberg, southern Germany. The excavation of building foundations connected with the church was an aim of the survey. Previous knowledge of the buried remains was based on the results of the few trial pits and a study of written sources. The resistivity method was applied. A preliminary survey using the twin-probe array (1 m spacing between traversing probe, 1 m 2 grid) gave no result. Symmetrical Schlumberger sounding was then carried out with a grid 2X5 Â 2X5 m over an area of 1500 m 2 . Both geoelectrical crosssections and resistivity maps were analysed for 12 different prospecting levels. Such a method of analysis allowed us to trace the remains from different periods: the east wing of the eighth to ninth century cloister and fragments of the seventeenth century complex. The remains are preserved at different depths. During the survey the instrument ARA, which is designed for shallow depth prospecting, was used.

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