[en] Results are reported from a study of 30 elements measured in cores from forty stations in southern Lake Michigan. The samples were taken from the top of each core (1 to 2 cm) and from 20 to 24 cm below the surface at which depth the sediment is associated with the presettlement era. Sedimentation rates at each station were estimated from the profile of either ¹³⁷Cs or ²¹⁰Pb in the core. Trace element analyses were performed using neutron activation and gamma-ray spectrometric methods on whole, dry samples or atomic absorption methods on acid leachates. A summary of the analytical results is presented as the average values for all cores analyzed. Cultural enrichment factors, defined as the ratio of the concentration near the surface to that at depth, are also given. It is clear that most elements shown are not entering the lake in significantly different amounts than they were about 150 years ago. In fact, there are only 10 or 12 elements which are significantly enriched in surface sediments