Starting from their territorial contiguity, the common natural and cultural heritage, the two parks have created a unique protected area of about 1000 km² across the F/I border. A long partnership process, at first generated by the need of common wildlife management, lead then to sustainable development and common visual identity. Thanks to more and more integrated projects, they developed a shared vision, and have finally created a common juridical structure following a new EU regulation: EGTC.