In contrast to a low forest[1] (also known as a coppice forest), a high forest usually consists of large, tall mature trees with a closed canopy.[2] High forests can occur naturally or they can be created and/or maintained by human management. Trees in a high forest can be of one, a few or many species. A high forest can be even-aged or uneven-aged.[3][4] Even-aged forests contain trees of one, or two successional age classes (generations).