A prelim inary analysis of suspended - sedim ent sam pling d ata collected betoveen 1966 - 1968 shows th a t the m ean annual suspended - sediment yield of the R iver Bozçay is about 137 cubic m eters p er square kilom eter of its drainage area. Together v/ith bed load, th e to ta l quantity of m aterial transported from the catchm ent area reaches up to 158 cubic m eters per square küom eter per annum.