Tropical forest habitat continues to decline globally, with serious negative consequences for environmental sustainability. The small mountain country of Nepal provides an excellent context in which to examine trajectories of forest-cover change. Despite having experienced large-scale forest clearing in the past, significant reforestation has taken place in recent years. The range of biophysical and ecological environments and diversity of tenure arrangements provide us with a context with sufficient variation to be able to derive insight into the impact of a range of hypothesized drivers of forest change. This article draws on a dataset of 55 forests from the middle hills and Terai plains of Nepal to examine the factors associated with forest clearing or regeneration. Results affirm the central importance of tenure regimes and local monitoring for forest regrowth. In addition, user group size per unit of forest area is an important, independent explanator of forest change. These variables also can be associated with specific practices that further influence forest change such as the management of social conflict, adoption of new technologies to reduce pressure on the forest, and involvement of users in forest maintenance activities. Such large-N, comparative studies are essential if we are to derive more complex, nuanced, yet actionable frameworks that help us to plan better policies for the management of natural resources.community forestry ͉ group size ͉ institutions ͉ monitoring ͉ Nepal I n recent decades, humankind has witnessed unprecedented destruction of forest cover, with its accompanying fallout on global climate, health, biodiversity, air quality, soil fertility, water flow, and other environmental variables. Deforestation also impacts the lives and livelihoods of the many millions of forest-dependent inhabitants around the world. Awareness of the extent of forest clearing and the magnitude of the ensuing problems have led communities, governments, and international organizations to create an array of protection mechanisms that range from government-owned protected areas to private conservation parks and community reserves. These plans have had mixed success, and it is difficult to unambiguously attribute success or failure to a specific formal mechanism (1, 2). Yet, conservation organizations, indigenous communities, and policy makers continue to engage in often heated debates concerning the presumed single best approach to conserve forest biodiversity (3).The remarkable dearth of reliable large datasets on forest change only exacerbates the already heated deforestation debate. Until recently, estimates by the Food and Agricultural Organization of the United Nations were used for most global studies. These data are based on information provided by government agencies in Ͼ200 countries and have been strongly criticized for providing an inaccurate picture complicated by variations in methodology and frequently changing baseline definitions of forest (4). More reliable assessments of rates of tropical d...