Background Active raised bogs are a priority habitat for conservation and are included in Annex I of the Habitats Directive. This habitat has suffered a steep decline in Europe in recent years. In Lille Vildmose (and in Denmark overall) active raised bogs have an unfavourable conservation status. This is mainly due to drainage, the invasion of trees, in particular birch, and deposition of airborne nitrogen from agricultural use and long-distance transport. Objectives The objective of the project is to restore the largest remaining raised bog in lowland northwest Europe, Lille Vildmose. The project will improve the conservation status of this priority habitat by facilitating re-growth of sphagnum moss and raising the water-table in areas of degraded raised bogs or in areas where peat has been excavated. These actions will result in a significant enlargement of the habitat area. Other wetland habitat types, such as natural dystrophic lakes and ponds, transition mires, and quaking bogs will also increase in size and number. Bog woodland coverage will decrease in areas selected for active raised bog restoration but will increase in other areas thanks to restoration – many areas are currently used for peat extraction. Expected results: Restoration and improved conservation status of raised bogs habitats, in line with the national objective for this habitat type; Establishment of larger areas and more sites with natural dystrophic lakes and ponds, transition mires and quaking bogs; Improvement of the living conditions for the Annex I-listed species, such as black stork, wood sandpiper, hen harrier, white-tailed eagle, crane and short-eared owl, as a result of the significant enlargement of wetland areas, including lakes; Enhancement of the ecological coherence and green infrastructure, resulting in improved conservation status of the entire Natura 2000 site; Increased local, regional and national understanding of and interest in raised bog ecology and conservation. The overall Natura 2000 site will, after the finalisation of the project measures, be one of the largest and most coherent nature sites in Denmark, presenting a unique opportunity to promote awareness of this unique type of natural wetland.