Situated in the northeast of the island, it contains white pine plantations, although beech is the most common tree species.

[1] The forest, a manor house also named Corselitze, a summerhouse, an extensive garden, farmland, and additional surrounding forests were developed by Major general Johan Frederik Classen,[2] a successful businessman who made his fortune running a number of companies in Frederiksværk in the north of Zealand.

When he died in 1792, he left all his possessions to a charitable foundation known as Det Classenske Fideicommis which continues to manage the forest today.

[3] The forest covers an area of 1,743 hectares (4,310 acres) and consists mainly of deciduous trees including beech and oak although there are also some conifers.

European spruce fills some 20% of the forest, sometimes mixed with Douglas-fir and grand fir.