Quercus montana, better known as the chestnut oak, is a species of oak in the white oak group called the Quercus sect. It is one of the most important ridgetop trees in its native region of the eastern United States, where it ranges from southern Maine southwest to central Mississippi, with a portion of its northwestern population existing in southern Michigan. Sometimes referred to as the "rock oak" because of montana and its rocky habitats. Because of its dry habitat and ridgetop exposure, it is not usually a large tree, typically ranging anywhere from 18-22m tall. This species plays an important role, acting as a canopy species in an oak-heath forest.
This species is a predominant ridge-top tree in eastern North American hardwood forests. It often grows with multiple trunks. It is a long-living tree, with sturdy timber when well-formed. The acorns of the chestnut oak are a valuable wildlife food.

Quercus montana