An elementary polygon corresponds to a stack (or stack) characteristic of hydrogeological entities.
D' after Sandre, dictionary of the hydrogeological reference SAQ version 2.1
__Origin__
The entities disseminated are entities at local level (NV3). These entities have " parent entities; at the regional (NV2) and national (NV1) levels, these associations are described in the multi-scale table downloadable above.
__Partner organisations__
Ash, Bureau of Geological and Mining Research
__Links annexes__
* [see the interactive dictionary on Sandre website](http://www.sandre.eaufrance.fr/?urn=urn:sandre:dictionnaire:SAQ::entite:PolyElementEH:ressource:2.1:::html)
* [see BDLISA’s delivery description v.2](http://www.sandre.eaufrance.fr/sites/default/files/document-sandre/Descriptif_données_BDLISA2_v3.pdf)
* [consult the control report of elementary polygons online](http://mdm.sandre.eaufrance.fr/geo/rapports/public/PolyElementEH)
* [recover an anomaly or propose a correction on the BDLISA forge](https://forge.eaufrance.fr/BDLISA)
* [download Elementary Polygons — Guadeloupe BDLISA v.2 — Geodatabase Format](http://services.sandre.eaufrance.fr/telechargement/geo/SAQ/BDLISA/2/GLP/BDLISA_V2_GLP-gdb.zip)
* [download Elementary Polygons — Guadeloupe BDLISA v.2 — SQLite Format](http://services.sandre.eaufrance.fr/telechargement/geo/SAQ/BDLISA/2/GLP/BDLISA_V2_GLP-sqlite.zip)
[See this page on geo.data.gouv.fr](https://geo.data.gouv.fr/fr/datasets/63aa041e5307f1f8687b3ce333400620609bd031)
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