摘要:The present work aims to present results, methodology description for the cartographic representation, incadastral scale, of the geodesic location of the Line of Medium High tide (LMH) and Line of Lands of Navy(LLN), with reference to the year of 1831, in area of the Beach of the Future, located in the city of Fortaleza,state of Ceará. For the accomplishment of the study they were used methods that involve geodesy concepts,cartography and techniques of remote sensing. He/she/you comes across, along the whole line of Braziliancoast, with situations that describe the occupation of the strip of navy lands: lands belonging to the Union. Theresults of the determination of LMH make possible the positioning of LLN, that is the horizontal distance of 33m,counted starting from LMH. This work, leaves of the expertise ordered by the Federal Justice in the State ofCeará, it concludes that, indeed, just part of structures of the huts of the Beach of the Future, occupies landsof the Union.