Land claims negotiations all follow a similar pattern wherever they occur and geolocated maps always take center stage. Such is also the case in French Guiana where the negotiation process started in 1984 (“Awala appeal”) and were officially launched in 1987 with the decree on ZDUCs (i.e concessions and collective cessions) with up to more than 700,000 ha of land currently in usufruct. Today with the 400,000 ha, the process goes further through a retrocession with ownership. The Euclidean conventional map, based on geolocalisation will be the key document for the whole process. As many parts of French Guiana are still uncharted at a fine scale level, mapping them is now crucial for the local communities. Also, it forces Indigenous communities to translate their own view and understanding of their land into that of Western culture. Therefore, alternative mapping forms of Indigenous territories in the land retrocession process are essential. Any Indigenous land inventory is an inventory of the land memory. One of the challenges of this project is to foster this dialogue between the geolocated maps and the sensibility maps. The “400K Memories” research project funded by the Marie Sklodowska-Curie European Fellowship especially aims to highlight the spatial knowledge and cartographic expression of the Indigenous land memory. Through sensibility mapping workshops dedicated to oral stories and local and creative modes of expression (e.g. basketwork, embroidery, beadwork, pottery) the project intends to identify and reveal important aspects of individual or collective connections to places. Therefore, this project embraces various forms of mapping practices in such a context, in order to delve into their specific processes and their interrelationships as well.