Lines not geometrically improved

Each boundary line between the municipalities is registered in the Central Registry of Cartography (RCC) according to its Registration Sheet. The associated legal documentation is constituted by a Demarcation Act with the operation carried out, to recognize the boundary and indicate the landmarks carried out by the Municipalities involved and the IGN. The technical documentation is made up of the field notebooks of the topographical surveys carried out and the plans of the time. The registration of the municipal boundary line in the RCC, consisted after its creation by Law 7/1986, of Cartography Management, in registering the current geometry published in the official cartography of the National Topographic Map together with the legal title that endorsed it in that moment. To do this, a process of digitalization of the limit lines was carried out using various printed cartographic sources, and with this the basis of the geometry was constituted. As a result of this, in general, they have a geometric uncertainty of around 40 meters, according to experience and comparison with specific specific works carried out by the IGN