The lesser known tropical montane areas of the Andean-Amazon flanks are presented here from the perspective of their biogeographical importance in both paleoecology and the current biocultural heritage. Famous for being the scenario of the European ‘discovery’ of the Amazon river by the Francisco de Orellana expedition, the tropandean flanks are lesser known because of the hidden human impact has been rediscovery with the decolonial scholarship applied to the notion of garden-jungle instead of the pristine virgin forest. In addition, the new narrative of ecological legacy as responsible factor of the current status of the tropandean mountains is analyzed from the perspective of the indigenous knowledge and the false imagery presented to tourists. I will communicate the “Kuka’ Umawa Declaration” as an attempt of recent findings from ethnoecological research on the importance of bridging science and community development using ethnotourism as the tool of collaborative efforts for sustainable, regenerative development of the lower mountains of the Andean flanks