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‪When it comes to land management, successive reforms to territorial governance have resulted in power games that have placed intercommunal authorities in charge of coordination without any clearly defined institutional hierarchy. The interviews conducted with actors in the territories studied (the Communauté de communes [joint local authorities] of the Vallée de Chamonix Mont-Blanc, Pays du Grésivaudan and Massif du Vercors) and our analysis of the public policy tools they use highlight the change in scale that has occurred in land management. We argue that the geopolitical stakes of land have been elucidated with the constitution of dedicated engineering, which invites us to distinguish between the development of capacities to act at the inter-municipal level and a fundamental renewal of public policy. Such a distinction makes it possible to define the role of land engineering which accompanies the uncertain game of recomposing local power.‪