The BD OCRS is a numerical database of zoning d' actual land use of the Littoral made from the black and white aerial photographs of l'IGN dating from 1985.
__Origin__
The land cover database was performed by photo-interpretation of black and white aerial photos from 1985 to 1/30 000 scale.
__Partner organisations__
DDTM Loire-Atlantique
[See this page on geo.data.gouv.fr](https://geo.data.gouv.fr/fr/datasets/93ed353138605a409e0244968756384ff273746c)
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