This article intends to question the processes of building a local public action. Using the example of three French mid-sized cities, the article highlights the mobilization of local stakeholders on a particular subject: landscape. Why and how is the landscape put in motion? By observing practice and speeches of stakeholders, it is the territorial organization under construction that seems emphasized, in particular through the groupings of conurbations. The article aims at opening new questionings concerning the capacity of landscape to govern the complexity of contemporary spatial phenomena and multiplied social and political expectations.