This essay deals with a part of the smithy in the garrison at Björkö, wich was excavated in 2002. Trace element analysis and phosphate analysis has been made on soilsamples from the floor. The results of these analyses are discussed and compared to other results of trace element analysis made recently from the rest of the smithy. It is suggested that this part of the smithy has been in use for a longer period of time than the rest of it, or that it has been the place for dumped scraps left over from the iron-work.