GéoBretagne is the partnership for territorial data in Brittany, established by the State (Prefecture) and the Brittany Region to improve knowledge of the territory. Built on the geOrchestra open-source platform, it offers INSPIRE-compliant services for searching, viewing, downloading, and transforming geographic data.
Coverage includes base cartography, addresses, land use, environment, and planning, contributed by public partners across Brittany, available as downloads and OGC services. It is the authoritative regional source for Brittany geodata.