Aquesta ortofoto està elaborada a partir dels fotogrames en color del vol fotogramètric que la Comisión de Urbanismo y Servicios Comunes de Barcelona y otros municipios va encarregar l’any 1977. Abasta l’àrea metropolitana de Barcelona, excepte part dels municipis situats a l'oest.

Regular grid model of 25 centimeters resolution, from the territory of the Barcelona metropolitan area, which expresses the orthometric altitudes of the surface of the territory, including the natural and artificial elements found on the ground (trees, buildings, etc.).

Regular grid model of 25 centimeters resolution, from the territory of the Barcelona metropolitan area, which expresses the orthometric altitudes of the terrain, without the elements that may be above it (buildings, vegetation, etc.).