Campamentos (informal settlements) are usually observed as units, islands within cities and located places of urban exclusion. This vision sets urban informality as enclaves. The campamentos in Alto Hospicio (North of Chile), which have played a central role in the development of the city, stress this static vision. Observing on experiences of residential mobilities of its inhabitants, we develop a relational perspective, which proposes to unveil how the campamento is produced by a set of interdependent relations with the city. Informality, vulnerability, and precariousness expand beyond the campamento "object". Three family stories are presented that