The aim of the study was to evaluate the intensity of soil erosion within the catchment of two closed depressions in the Nałęczów Plateau (Lublin Upland). The amount of erosion was assessed from the depth of accumulated soil material, and the calculated amount was related to the time of agricultural land use. The studies were carried out in the catchment of the area of ​​0.54 ha. Within the catchment, 75 intact soil cores were taken and analysed to determine the depth of soil horizons and accumulated soil material. Depositional soils were represented by 25 soil cores. The average thickness of the accumulated material was 0.75 m with a maximum of 1.78 m. The results showed that the catchment of two combined closed depressions evolved to the form of a small valley (trough) after 185 years of agricultural use. The volume of soil material accumulated in the catchment, calculated from the thickness of the depositional material in soil profiles collected in a regular grid, was 1797.4 m³, and the volume calculated from the profiles located in transects that crossed the catchment axis was higher by 2%. The average rate of erosion in the catchment of the two combined depressions was 24.3 Mg ha^-1 yr^-1.