Prey Lang Community Network (PLCN) is a network of community members in Prey Lang (which means 'our forest' in the Indigenous Kuy language), a large lowland rainforest in Cambodia. Prey Lang is a critical habitat for many threatened plant and animal species, and important to Kuy and other local livelihoods and cultures. Since 2004, PLCN has been organising community patrols of the forest in order to monitor illegal logging activity and industrial agriculture, and since 2014 they have been using a smartphone app they co-developed to collect data to share with policymakers and the public.