Site KBS (Kay Behrensmeyer Site): The consolidated deposits are dug in 5 cm increments by tapping a small chisel. The lumps and crumbs of tuff are broken on a board with a rubber mallet and then sent for screening. Almost all material is found while still in place as excavation proceeds. Excavator, Mr. J. Kimengech of the Kenya National Museum.
Site KBS (Kay Behrensmeyer Site): Shows the base of the pale grey tuff dust layer being "peeled" off the tuff sand layer to expose the archaeological horizon at the interface. Excavators, Mr. J. Barthelme, University of California and Mr. Msau of the National Museum.
Excavating a Gal-dies camp that had been buried by sand a short while after occupation had ended. The fishing group had chosen this spot because the ephemeral water course provided comfortable sand to sit on. The small stream then flooded, burying the discarded flood refuse and the hearth. The situation involves many parallels with the KBS site. Ms. Diane Gifford (left rear) conducted the study and will publish detailed reports.
However in one area, far inland from the lake, erosion has exposed a concentration of stone tools at a horizon between that dated to 1.3 and 1.6. This is the site RHS. Here Margaret Leakey and Glynn Isaac sort specimens from the eroded surface of this site.
Excavations nearby disclosed the existence of a dense patch of artifacts that had not yet been cut into by erosion. This patch has a diameter of 12 - 15 m. and contains more than a tone of stone, which was apparently imported by early man. This is the site of DE/89 horizon B. The material has been concentrated by current action in part of the seasonal streambed in which the early humans camped.