The 5,251 ha Kalkalpen WILDForest consists of four areas (Hintergebirge, Bodinggraben, Urlach, Wilder Graben) with highly valuable beech forests that are embedded within the boundaries of the Kalkalpen Wilderness. The Kalkalpen WILDForest is a hotspot for biodiversity, depending on spontaneous natural processes and ecosystem dynamics and is an important reference area for comparisons with managed forest.

The Zacharovanyy kray WILDForest is partially embedded in the Zacharovanyy kray Wilderness and in Zacharovanyy kray National Nature Park, Ukraine. Zacharovanyy kray WILDForest preserves the natural state of the beech forest in the central part of the Ukrainian Carpathian Mountains. Zacharovanyy kray WILDForest is committed to protect self-regulated natural processes, and has been for several years.

The Uholka-Shyrokyy Luh WILDForest is embedded in the Uholka-Shyrokyy Luh Wilderness and in  Carpathian Biosphere Reserve. The Uholka-Shyrokyy Luh WILDForest is an hotspot for biodiversity, depending on spontaneous natural processes and ecosystem dynamics. The old-growth forests of Uholka-Shyrokyy Luh WILDForest is an important reference area for comparisons with managed forest. Europe.

The Kuziy-Trybushany WILDForest is embedded in the Carpathian Biosphere Reserve, located in western Ukraine. The Carpathian Biosphere Reserve includes several large WILDForests. The Kuziy-Trybushany WILDForest is a hotspot for biodiversity, depending on spontaneous natural processes and ecosystem dynamics. The old-growth forests of Kuziy-Trybushany WILDForest is an important reference area for comparisons with managed forests.

The Hainich WILDForest is embedded into the Hainich National Park, Germany. The Hainich National Park was founded in 1997. Over 90% of Hainich National Park is not in economic use, where nature is returning to its roots. In contrast to economic forests, the woodland in Hainich WILDForest may develop back, untouched, into a primeval woodland in the heart of Germany.