File contains surveyor reports and other documents related to a case in the Court of King's Bench for the District of Montreal regarding a legal dispute between the Crown and four defendants over the dividing lines between properties in southwestern Quebec. The properties concerned in the case were the augmentation / second concession of Mille-Isles, the first concession of Mille-Isles (Blainville and Riviere du Chene), the seigniory of the Lake of the Two Mountains (Lac des Deux Montagnes), the seigniory of Argenteuil, and Chatham Gore (Gore de Chatham). The defendants named in the case were Eustache-Nicolas Lambert Dumont, Jean-Henry-Auguste Roux for the Seminary of Montreal, Janvier-Domptail Lacroix, and Catherine Jordan (widow of William Claus). The Crown was represented by Charles R. Ogden. Documents include a copy of the judgement, surveyors reports, procès-verbaux, accounting of costs owed for survey work, and an inventory of documents.