This interdisciplinary study examines a community ritual in Mongar, eastern Bhutan, in connection to its socio-ecological context. We provide an in-depth documentation of the tsensöl (btsan gsol) deity-propitiation ritual to ‘seal’ territory and prohibit entry to higher mountain reaches. The ritual and the community mountain-closure period (ladam) that it precedes are first situated in context of other documented (but now defunct) territorial sealing practices in Tibet and the Buddhist Himalaya. We then analyse and discuss the syncretic, flexible, and place-based nature of tsensöl, and show how the ritual, the mountain god Khobla Tsen and ladam are interrelated in expressing community concerns for safe-harvests and wellbeing. We conclude by examining what a ritual such as tsensöl might tell us about village political ecology, community concerns, and knowledge of the environment.