“…Protected natural areas provide a good example of the disparate management measures taken on either side of the border, be it international or internal to the state (Trillo-Santamaría and Paül, 2016;Mulero, 2018;Vila-Lage, Paül and Trillo-Santamaría, 2020). Similarly, initiatives have been taken aimed at facilitating the management and planning of (cross)border landscapes, based, for example, on the joint mapping of the Pyrenees (Gárate and Ibarra, 2018) or on specific plans for a specific border area, the case for example of La Cerdanya (Nogué and Sala, 2018). The latter is a paradigmatic example of how geography can and should face the challenge of analysing, diagnosing and developing joint measures for a landscape that cannot be understood in a disjointed, incoherent fashion, given that the international boundary is the result of a political agreement that divides a highly homogenous tectonic trench in the Pyrenees, not only in terms of its natural endowment but also socially, culturally and economically.…”