This text analyzes indigenous peoples' processes of identity construction as ecological natives. It opens space for reconstructing all the different networks, conditions of emergence, and implications (political, cultural, social and economic) of one specific event: the consolidation of the relationship between indigenous peoples and environmentalism. This text is based on ethnographic information and focused on the historical process of the emergence of indigenous peoples' movements in Latin America, in general, and indigenous peoples of the Sierra Nevada de Santa Marta do Columbia (SNSM), in particular. It demonstrates the process of the construction of indigenous peoples' environmental identities as an interplay of local, national and transnational dynamics among indigenous peoples and environmental movements and discourses in relation to global environmental policies.