This essay discusses the width of the late medieval desertion of farms in Sweden from an archaeological perspective. The object of the essay is to investigate if archaeological investigations and research during the last 10-15 years have changed the view of the late medieval desertion in relation to the Scandinavian research project on deserted farms and villages. The essay also deals with questions on causes to the desertion and when desertion occurred. An ambition of the essay is also to give a general picture of archaeological investigations during the last 10-15 years considering the late medieval desertion. The analyses-material consists mainly of reports from archaeological investigations. Most of the investigations analysed in this essay are investigations of single farms. Because of this it is natural these investigations do not say much about the width of the desertion. As long as an archaeological investigation is not a part of a large project, where the purpose is to show the width of the desertion, one cannot expect that one single investigation will give much information or knowledge about the width. However, if the ambition is to obtain a complete picture of a medieval deserted farm or village, this essay confirms that an archaeological investigation is necessary, willingly in an interdisciplinary cooperation.