Transverse limit of the sea

Layer d' Geographic information containing the Transversal Limits of the Sea (LTM) — Metropolitan France, French Guiana, Martinique, Guadeloupe, Reunion. This data has been submitted to the competent services for validation. However, the shom remains the taker of any additional information or which makes it possible to specify this data. The listed water courses are those listed in the regulations in force and/or by a department of the competent State. Prior to production, an inventory of existing (legal and geographical information) was carried out through a survey of services in the second half of 2014.For each proposed limit, access to the source legal text and a summary sheet summarising the modalities of digitising the limit is accessible. Version of July 2018 __Origin__ Geographical information is digitised from the indications (textual descriptions) in legal texts. Where possible, digitisation was systematically carried out from the most precise geographical repository possible (Ortho Littorale V2). At each limit is associated a summary sheet summarising the production methods of the data and indicating the degree of accuracy (type of positioning: precisely known (uncertainty less than 50 m); approached (uncertainty between 50 m and 200 m); doubtful (uncertainty > more than 200 m); impossible). __Partner organisations__ SHOM __Links annexes__ * [portal d' Geographical Information of Shom](https://data.shom.fr) * [LIMITES_TRANSVERSALES_MER_WFS:ltm_3857_arc](https://services.data.shom.fr/INSPIRE/wfs/) * [LIMITES_TRANSVERSALES_MER_WFS:ltm_3857_point](https://services.data.shom.fr/INSPIRE/wfs/) [See this page on geo.data.gouv.fr](https://geo.data.gouv.fr/fr/datasets/7cb4746db4c51398e8660d987c42c459f99c769c)